SIMEC Oil Press – SIMEC OIL PRESS

03
Nov 25
0

Cold-Pressed Black Seed Oil

Black seeds come from an ancient plant native to Southwest Asia, the Mediterranean, and North Africa. In ancient Egypt, the oil extracted from black seeds was not only used as a food ingredient but also as a beauty product for women. In addition, the active ingredients in black seeds, such as thymoquinone and unsaturated fatty acids, support the development of medicine; given these properties, the research on black seed oil is necessary. This article provides a detailed introduction to black seed oil’s extraction methods, product value, and market trends.

Extraction Method: Cold Pressing

Reasons for Choosing Cold Pressing
Experimental analysis shows that black seeds exhibit significant anti-inflammatory and antibacterial effects, while also demonstrating potential to lower blood pressure, reduce blood lipids, and improve non-alcoholic fatty liver disease. In addition, black seed oil also shows various protective effects against tumors, neurological diseases, and drug-induced toxicity.

As reported in the Chinese Journal of Modern Applied Pharmacy (a professional academic journal), the cold pressing method extracts higher levels of fatty acids, such as linoleic acid and palmitic acid, compared to other extraction techniques.

Process Flow of Cold Pressing
Under a low-temperature environment below 60°C, physical pressing equipment is used to directly apply pressure to cleaned black seeds (Nigella sativa seeds), separating the oil from the seeds. No chemical reagents are added throughout the process, and no high-temperature heating is involved. This method maximizes the retention of active substances in black seeds (Nigella sativa seeds), such as thymoquinone, vitamin E, and unsaturated fatty acids, resulting in oil with better flavor and nutritional value, and no risk of chemical residues.

Key Steps:
1. Seed Cleaning: Remove impurities (e.g., dust, broken husks) from black seeds to ensure raw material purity.
2. Seed Crushing: Use a grinder to crush black seeds into fine powder, which increases the contact area during oil pressing and improves oil extraction efficiency.
3. Low-Temperature Pressing: Use SIMEC HOP50/280 hydraulic oil press to press at low temperatures, avoiding high temperatures that damage active ingredients (such as thymoquinone and unsaturated fatty acids).
4. Filtration and Purification: Filter the crude oil obtained after pressing using a vacuum oil filter to get clear Nigella sativa seed oil.

Advantages of Cold Pressing Technology
Cold pressing is superior in “no chemical residues” and “maximized retention of active ingredients”, thus making it ideal for the production of high-end healthy edible oils and medicinal oils.

When applied to black seed oil production, the cold pressing process (35-40°C, 50 MPa) can effectively retain thymoquinone (≥3.0%) and unsaturated fatty acids (≥80%) in the final product, whose basic quality complies with the standards for high-end oils. Additionally, cold-pressed black seed oil contains approximately 1% essential oil components. These components not only impart a rich aroma to the oil but also enhance its anti-spoilage property due to their natural preservative effects.

Core Value of Cold-Pressed Black Seed Oil

Antioxidant-Rich Composition
Black seed oil is packed with antioxidants like thymoquinone that protect cells from free radical damage. These compounds reduce inflammation and may help prevent chronic diseases including cancer and Alzheimer’s.
Potential in Treating Asthma
Studies suggest black seed oil’s anti-inflammatory properties can improve asthma control by relaxing airway muscles. Though promising, more research is needed to confirm its long-term effectiveness and safety.
Aid in Weight Loss
Black seed oil may boost metabolism and support fat burning for weight management. However, further studies are required to determine optimal dosage and mechanisms.
Benefits for Skin and Hair
The oil hydrates skin, reduces acne, and protects against damage through its antioxidant properties. It also promotes hair growth, reduces dandruff, and strengthens follicles.

Market Trends of Cold-Pressed Black Seed Oil

Black seed oil is rapidly evolving in the international market from a traditional regional product to a globally recognized premium functional food and natural health product. It has established a strong position as a high-value, scientifically-backed natural health food and premium cosmetic ingredient in the international market, with significant potential for future growth.

28
Oct 25
1

Hemp Seed Oil Press Delivery to Thailand

Tags : Hemp Seed Oil Press Thailand

In August 2025, one set of HOP50/185 hydraulic oil press was shipped to Thailand after strict factory inspection. The machine will serve a local enterprise dedicated to producing premium-quality hemp seed oil, marking another step forward for SIMEC in the Southeast Asian specialty-oil market.

The consignment, model HOP50/185, is SIMEC’s flagship unit engineered for processing high-value oilseeds. Employing a purely physical, low-temperature cold-pressing technology, this press extracts oil without the use of chemical solvents. This process effectively retains the inherent nutrients and bioactive compounds in the seeds, making it ideally suited for producing health-focused oils like hemp seed oil and flax seed (linseed) oil.

Flax seed oil is highly prized for its rich content of α-linolenic acid (ALA), a plant-based source of Omega-3 fatty acids. As this specific fatty acid is heat-sensitive, conventional hot-pressing processes tend to cause its degradation. In contrast, SIMEC’s hydraulic oil press applies pressure gradually and produces minimal frictional heat, ensuring the entire pressing zone stays well below the temperature threshold for oxidation. This advanced pressing method ultimately yields flax seed oil that maintains its natural state, purity and complete nutritional profile.

Key Advantages of Hydraulic Cold-Pressing Technology
1. Low-Temperature Cold Pressing: Full Nutrient Retention
Slow compression at high pressure (≤ 60 MPa) generates almost no heat. This prevents the oxidation of α-linolenic acid and effectively preserves the oil’s health-promoting properties.

2. 100% Physical Pressing: Green and Safe
No additives or organic solvents are used in the process. This guarantees a clean product label and meets consumers’ demand for truly natural food products.

3. High Extraction Efficiency with Premium-Quality Press Cake
The intense yet gentle pressure thoroughly ruptures oil cells, resulting in high oil yield. Meanwhile, the low-temperature process retains the native protein in the press cake, making it an excellent ingredient for food or feed production.

4. Easy Operation & Low Maintenance Costs
A robust, automated Human-Machine Interface (HMI) minimizes labor requirements. Additionally, the straightforward equipment design reduces routine maintenance needs and long-term operating costs.

By choosing SIMEC, the Thai customer has shown trust in our engineering and service standards. With decades of profound expertise in hydraulic oil pressing technology, SIMEC is well-positioned to help the client produce high-quality hemp seed oil that meets the requirements of the global premium health oil market.

Detail Packing List:

Mark	Items	Packing Dimensions (LWH)	Volume	Gross Weight
SIMEC	HOP50/185 hydraulic oil press, spare parts and tool kit.	9008001320 mm	0.95 m³	575 kgs

15
Aug 25
2

Advantages of Avocado Vacuum Dehydration

Tags : Avocado Oil Vacuum Dehydration

Avocado oil is rich in monounsaturated fats, vitamin E, polyphenols, and chlorophyll, making it a premium product for both culinary and cosmetic applications. However, conventional drying methods degrade thermolabile nutrients and accelerate lipid oxidation prior to oil extraction. To address these issues, vacuum dehydration technology emerges as a promising solution: it operates at lower temperatures, effectively removing moisture while preserving bioactive compounds. By minimizing oxidation during processing, it also enhances the oil’s stability.

Please see the detailed analysis below.

1. Retain heat-sensitive nutrients
Vacuum dehydration reduces the boiling point of water, enabling low-temperature rapid dehydration and maximizing the retention of heat-sensitive antioxidant components. Studies have shown that the vitamin E retention rate in vacuum-dehydrated avocado pulp is 20-30% higher than in hot air dried pulp. In addition, avocado contains lipoxygenase and peroxidase, which accelerate oil oxidation at high temperatures; the vacuum environment inhibits the activity of these enzymes, thereby providing more stable raw materials for subsequent cold pressing.

2. Improve oil extraction rate and quality
Vacuum dehydration causes avocado pulp to form a porous, loose structure, which reduces mechanical resistance during the cold-pressing process and increases oil yield by approximately 5-8% compared with traditional drying methods. For example, a Mexican manufacturer using vacuum dehydration combined with cold pressing saw oil yield rise from 12% to 18% on a dry basis—an increase of 6%, consistent with the above range. Additionally, vacuum dehydration can reduce the moisture content of avocado pulp to 4-6% at low-temperature. This process inhibits the activity of lipases (enzymes that break down fats into free fatty acids) and reduces phospholipid oxidation, thereby lowering the content of free fatty acids and phospholipids in the pressed oil and alleviating the burden of subsequent refining processes.

3. Extend the shelf life of avocado oil
Since moisture is a key medium for microbial growth, the vacuum dehydration process removes most of the water, significantly reducing the risk of microbial and mold contamination in cold-pressed avocado oil. The peroxide value (an indicator of oil oxidation) of the subsequent cold-pressed oil is 30~40% lower than that of crude oil from hot air dried pulp. Additionally, vacuum dehydration retains natural antioxidants (such as polyphenols and tocopherols), which can delay oil rancidity during storage. Experiments show that compared with oil from traditionally dried pulp, the shelf life of vacuum-pretreated avocado oil is extended by 3~6 months when stored at 25℃ away from light.

4. Energy saving and environmental protection advantages
The energy consumption of vacuum dehydration is approximately 1/3 to 1/2 that of freeze drying, and its processing time is shorter than freeze drying, making it suitable for large-scale production. Additionally, compared with the aqueous enzymatic oil extraction process, vacuum dehydration does not require large amounts of water usage, thus avoiding the problem of oily wastewater treatment.

5. High technical adaptability
Vacuum dehydration can be directly connected to cold pressing or supercritical CO₂ extraction without secondary drying, reducing process losses and shortening production cycles. The dehydrated avocado pomace can also be used to extract polysaccharides or dietary fiber, achieving full utilization of raw materials and improving their utilization rate.

Vacuum dehydration technology is driving avocado processing toward higher efficiency, superior nutrition retention, and a lower carbon footprint. Although there are still challenges in cost control, standardization, and optimization of green production processes, we can expect its further integration with other technologies to move to a new stage of development.

14
Apr 25
0

Pretreatment & Pressure Strategies for Oil Pressing‌

Tags : Pressure Control Pretreatment

During the oil extraction process with a hydraulic oil press, precise pressure regulation significantly impacts both the yield and quality of the oil. The optimal pressure required for different oilseed crops (such as rapeseed, peanuts, soybeans, etc.) varies during the extraction process. For example, in rapeseed oil extraction, a lower pressure may be needed initially to cause preliminary deformation of the oilseeds, and as the extraction process advances, the pressure should be gradually increased to fully extract the oil.

Improper pressure regulation may lead to a series of problems. Excessive pressure can increase the impurity content in the extracted oil and damage the oil extraction equipment, shortening the lifespan of the equipment; conversely, insufficient pressure may fail to fully extract the oil, reducing the oil yield and causing waste of raw materials.

Customizable pressure control & process optimization

SIMEC oil press machine is equipped with an advanced pressure control system that can automatically adjust the pressure based on the set parameters and real-time monitored data. The system includes components such as pressure sensor, controller, and actuator, enabling precise and stable pressure regulation.

In addition to the precision of pressure regulation, SIMEC oil press can also provide customizable pressure and time control schemes. However, the optimal pressure and time control schemes for each type of oilseed, as well as the best pretreatment methods, are not determined by the machine. Instead, users need to conduct repeated experiments, accumulate data, and analyze and summarize the results to figure them out.

Pretreatment & pressure strategies for oil pressing‌
While pressure regulation is a key factor in oil extraction, ‌material pretreatment‌ plays an equally vital role in determining both ‌extraction efficiency‌ and ‌final oil quality‌. Different oil-bearing materials require customized pretreatment workflows, which typically involve:
Dehydration‌ (moisture control)
Size reduction‌ (crushing/grinding)
Thermal processing‌ (steaming/roasting)

Next, let’s analyze the recommended set pressure variation for the following materials: soybean seeds, coriander seeds, almond seeds, nutmeg (jaiphal) seeds, boswellia and senna extract cake.

There is no universal set pressure variation for these materials when using a hydraulic oil press, as it can be affected by multiple factors such as the material characteristics (oil content, hardness, moisture), pretreatment effectiveness, target oil yield vs. quality balance. For most of the raw material, it’s important to start from low pressure, then increase gradually. Now, let’s apply these principles to six target materials, starting with their unique pretreatment needs and corresponding pressing strategies.

1. Soybean Seeds

Raw Material Pretreatment
Cleaning	Remove foreign materials (stones, dirt, broken seeds) using a sieve or air classifier.
Drying	Reduce moisture content to 8-10% via air-drying or low-temperature drying (40-50°C) to prevent mold and improve oil yield.
Crushing	Use a roller mill or hammer mill to break seeds into coarse particles (3-5mm) to expose oil cells.
Conditioning (Optional)	Steam for 10-15 minutes at 80-90°C to soften cell walls and enhance oil flow during pressing.
Pressing Parameters & Operation
Pressure Setting	Start at 30 MPa, gradually increasing to 40-45 MPa (long-term safe range) to avoid over-stressing the press.
Pressing Time	2-3 minutes for steady compression, allowing gradual oil release.
Retention Time	5-8 minutes to ensure full oil drainage; longer retention helps extract residual oil from dense soybean cakes.

2. Coriander Seeds

Raw Material Pretreatment
Cleaning & Sorting	Use a vibrating sieve to remove debris and undersized seeds.
Moisture Adjustment	If moisture >12%, dry at 35-40°C until moisture is 8-10%.
Cracking	Gently crush seeds with a roller mill to split them into halves (avoid excessive powder to prevent clogging).
Roasting (Optional)	Roast at 100-110°C for 15-20 minutes to enhance oil flavor and release oils more easily.
Pressing Parameters & Operation
Pressure Setting	Maintain 35-40 MPa to handle small, brittle seeds without generating excessive fines.
Pressing Time	1.5-2 minutes for quick compression, suitable for small seeds.
Retention Time	4-6 minutes to allow oil to flow through the compacted seed bed.

3. Almond Seeds

Raw Material Pretreatment
Shell Removal	Mechanically remove hard shells; use a nutcracker for uniform splitting.
Blanching (Optional)	Soak in hot water (80°C) for 1-2 minutes to remove skins, improving oil clarity.
Drying	Ensure moisture <8% (air-dry or low-temperature drying at 40°C).
Chopping	Cut almonds into 4-5mm pieces to increase surface area for oil extraction.
Pressing Parameters & Operation
Pressure Setting	Start at 25 MPa, gradually increasing to 35-40 MPa (almonds have high oil content; lower pressure prevents excessive cake fines).
Pressing Time	2-2.5 minutes for gentle compression.
Retention Time	6-8 minutes to allow slow drainage of viscous almond oil.

4. Nutmeg (Jaiphal) Seeds

Raw Material Pretreatment
Shell Removal	Crack hard outer shells using a specialized nutcracker; discard shells.
Grinding	Use a disc mill to grind kernels into a coarse powder (2-3mm particles) to break oil-rich tissues.
Conditioning	Warm at 60-70°C for 10 minutes to soften oils (nutmeg oil has a low melting point, ~30°C).
Pressing Parameters & Operation
Pressure Setting	40-45 MPa to handle the dense structure of nutmeg kernels.
Pressing Time	2.5-3 minutes for steady compression of granular material.
Retention Time	5-7 minutes to ensure full extraction of aromatic nutmeg oil.

Boswellia/senna extract cakes are byproducts with residual oils, not primary oilseeds. Pretreatment focuses on moisture reduction and structure modification for oil recovery.

5. Boswellia Extract Cake

Raw Material Pretreatment
Dehydration	Reduce high moisture (75% → <15%) via forced-air drying at 50-60°C for 4-6 hours to prevent bacterial growth and improve press efficiency.
Crushing	Break cake into 1-2cm chunks using a jaw crusher; grind into a coarse meal to expose residual oil pockets.
Mixing (Optional)	Blend with dry rice hulls (10% by weight) to create a porous structure for better oil flow.
Pressing Parameters & Operation
Pressure Setting	The pressure needs to be gradually increased to 45-50 MPa (high pressure needed to extract residual oils from compacted cake).
Pressing Time	3-4 minutes for slow, firm compression.
Retention Time	8-10 minutes to allow oil to drain through the dense, moisture-reduced cake.

6. Senna Extract Cake

Raw Material Pretreatment
Drying	Reduce moisture from 75% to 12-15% using a tray dryer at 50°C (6-8 hours) to improve pressability.
Shredding	Use a hammer mill to shred cake into fine strips (5-10mm) to increase surface area.
Conditioning	Mix with 5% calcium oxide to absorb excess moisture and prevent cake sticking during pressing.
Pressing Parameters & Operation
Pressure Setting	Gradually increase to 45-50 MPa (similar to Boswellia cake).
Pressing Time	3-4 minutes for gradual compression.
Retention Time	8-10 minutes to maximize oil extraction from the low-oil cake.

In actual operation, it is necessary to conduct preliminary tests according to the specific characteristics of the raw materials, equipment performance, and the desired product quality to determine the most suitable set pressure variation range, pressing time and retention time.

31
Mar 25
14

Avocado Oil Extraction Machine to Kenya

Tags : Avocado Oil Extraction Machine Kenya

Kenya is Africa’s largest avocado producer, with main varieties including Hass, Fuerte, Jumbo, Pinkerton, and Reed. The primary harvest season runs from March to July, while a shorter secondary harvest occurs around October. In 2023, Kenya’s avocado production reached approximately 417,000 metric tons.

Fuerte, one of the major cultivated varieties in Kenya, features larger fruit with soft flesh and high oil content (typically 20%-30%), making it ideal for oil extraction. The oil derived from Fuerte avocados has a mild, delicate flavor without strong pungent odors, suitable for various cooking methods and food processing applications, enhancing dishes with its unique taste.

Hass avocado serves as Kenya’s primary export variety. It also boasts high oil content and excellent oil quality, rich in healthy fatty acids and vitamins, making it well-suited for both oil production and culinary uses.

In Kenya, there are already a number of avocado oil manufacturers, many of which adopt SIMEC cold pressing technology. The avocado oil extraction machine provides 380 tons of vertical force pressing on oil material to extract oil efficiently. Throughout the cold pressing process, no external heat is applied to the oil material, and vertical pressing will not generate friction heat, preventing any temperature increase. Cold pressed avocado oil retains natural flavor and all the beneficial nutrients, thus it is called Extra Virgin avocado oil. The avocado oil price in retail market reaches $30 per liter.

In January 2025, SIMEC delivered avocado pasting machine and avocado oil extraction machine to Nyeri, Kenya. The ocean freight to Kenya, import customs clearance, and door-to-door delivery to the customer’s premises are fully handled by SIMEC.

This avocado oil manufacturer uses avocado pasting machine to peel and pit the whole fruits, and at the same time beat the flesh into paste form. All the three functions peeling, pitting and beating are integrated into one machine. To maximize the efficiency of avocado oil extraction, the avocado paste will be dehydrated using a low temperature vacuum dehydrator. The low-temperature and vacuum environment can ensure that the avocados will not be oxidized during the dehydration process, and retain the nutrients to the greatest extent possible. After that, the dehydrated avocados will be fed into the oil press machine to produce extra virgin avocado oil.

Utilizing SIMEC avocado oil processing machine, this Kenyan customer can expect an investment payback period of no more than six months.

Packing Details:

Mark	Packing Dimensions（LWH）	Net Weight	Gross Weight	Packing Details
SIMEC 01	2380x1400x1400 mm	2400 kgs	2486 kgs	Hydraulic oil press, 1 set; spare parts and toolkit, 1 set; filter cloth, 40m.
SIMEC 02	1220x770x1520 mm	280 kgs	300 kgs	Avocado pasting machine, 1 set.
Total	6.09 CBM	2680 kgs	2786 kgs

28
Mar 25
1

Avocado Vacuum Dehydrator

Tags : Avocado Vacuum Dehydrator Low-Temperature Rapid-Dehydration

Engineered to address avocados’ dual challenges of nutrient richness and heat-sensitive oxidation, the SIMEC Avocado Vacuum Dehydrator employs revolutionary Low-Temperature Rapid-Dehydration (LTRD™) technology to lock in 98%+ of nutrients, even at 1/3 the time of conventional drying methods.

Technology introduction:
Low-Temperature Avocado Vacuum Dehydrator consists of biomass heating system, heat flow circulation system, vacuum chamber, material tray support, control system and other necessary accessories.

The biomass heating system runs on biomass pellets or macadamia nut shells. It automatically controls heat flow temperature within a set range. With automatic feeding and temperature control, it cuts heating costs. Plus, it shrinks the carbon footprint during avocado dehydration.

The vacuum chamber, made of food-grade stainless steel, is a sealed space for drying. In vacuum, the boiling point of water drops, enabling low-temperature dehydration and preventing oxidation. The tray support with heat-flow pipes evenly heats the vacuum chamber. Well-designed and strong, it can hold 96 trays, greatly increasing throughput.

The control system is equipped with advanced sensors to monitor both the heat-flow temperature and the chamber temperature in real-time. It then automatically and precisely adjusts the heater output, ensuring that the chamber temperature remains stable within a pre-set range.

Technical advantages:
1. Low Temperature Dehydration Retains Nutrients.
Under the vacuum condition, the boiling point of water drops significantly, enabling the moisture within the avocados to swiftly vaporize even at a very low temperature, thereby achieving efficient dehydration. This process maximally preserves the original nutritional value of the avocados.

2. Vacuum Environment Prevents Oxidation.
Oxidation darkens avocados, spoils their flavor, and deactivates nutrients like antioxidants. In a vacuum environment, the minuscule oxygen content effectively stops avocados from oxidizing. Extra Virgin avocado oil can be extracted from vacuum-dehydrated avocado pulp using an avocado oil cold press machine.

3. Circulating Heat Flow Ensures Uniform Dehydration.
The circulating heat flow system is distributed throughout the vacuum chamber, forming an all-round heating structure to ensure uniform temperature. Avocados in the upper, middle, and lower layers of the vacuum chamber can all be dehydrated in the same temperature and pressure environment, which ensures that each piece of dried avocado has consistent color, taste, and water content. Avocados can be dehydrated efficiently at low temperature.

4. Eco-Friendly Process.
It’s a low energy consumption, low carbon footprint process for dehydrating avocados.

5. Large-Capacity Design.
SIMEC avocado vacuum dehydrator can dehydrate avocado paste and sliced avocados. It has a large capacity and enables quick loading and unloading of materials.

Technical parameters:

Items	Specifications	Remark
Inner dimensions	150015001500 mm
Overall dimensions	168416521698 mm
Number of material trays	96 trays per set. A total of 2 sets are provided, with 1 set in use and 1 set as a spare.	Size of the material trays: 46064035 mm. SS 304.
Tray support	16 layers, with 6 trays on each layer.	SS 304
Processing capacity	680-950 liters/batch	Fresh avocado paste
Dehydration time	2-3 hours/batch	Achieving the proper state for oil pressing
Thickness of avocado paste	25-35 mm	Adjustable as per drying requirement
Vacuum chamber temperature	40~60℃	±2℃
Vacuum degree	-0.090~0.098 MPA	±0.002 MPA
Thermal source	Biomass heating system	Circulating heat flow
Types of fuel	Biomass pellets, macadamia nut shells	Automatically regulated feeding.
Fuel consumption	18 kg/hour	Based on 4300 Kcal/kg Gross Calorific Value
Flow rate	4 m3/h	Liquid-phase heat transfer working medium
Installed power	9.5 kW	Total sum of the avocado dehydrating system.

24
Mar 25
1

Demo of Avocado Pasting Machine

Tags : Avocado Pasting Kenya

The video was taken on March 17, 2025, presenting the avocado pasting process. SIMEC technology integrates avocado peeling, pitting and beating.

Model: APM28
Power: 4 kW
Brand: SIMEC
Location: Nyeri, Kenya

17
Mar 25
0

Cold-Pressed Sunflower Seed Oil

Tags : Cold-pressing Technology Sunflower Oil

Sunflower seed oil has become a part of human food culture with its unique nutritional composition and health value. As a cooking oil, sunflower oil is rich in nutrients and has many benefits for human health.

Sunflower oil is rich in unsaturated fatty acids, especially linoleic acid and oleic acid, which play a positive role in maintaining cardiovascular health and lowering cholesterol levels. In addition, sunflower seed oil also contains antioxidants such as vitamin E and phytosterols, which help resist free radical damage and protect cells from oxidative stress, thereby delaying the aging process and promoting overall health. In the field of nutrition, sunflower oil is recognized as a healthful cooking oil because of its balanced fatty acid ratio and rich nutrients.

In the processing of sunflower seed oil, cold pressing is a highly respected method, especially hydraulic cold pressing technology. A vertical press force of 380 tons exerted on sunflower seeds effectively ensures the high efficiency of the oil extraction process. Notably, throughout the entire oil extraction procedure, no external heat is applied to sunflower seeds, and vertical pressing will not generate friction heat, preventing any temperature increase.

Hydraulic cold-pressing technology maximizes nutrient and flavor retention. By keeping the temperature below 50°C, it prevents high-heat oxidation, minimizing nutrient loss. It also preserves the oil’s fresh aroma and natural color. As a result, the sunflower seed oil processed by hydraulic cold-pressing exhibits a clear, light-golden hue and a pure, delicate taste. Evidently, compared with conventionally processed oils, cold-pressed sunflower oil is far superior in both taste and nutritional value

Sunflower seed oil can be presented to consumers in the purest and healthiest state through the hydraulic cold pressing technology. In the European market, retail prices for cold-pressed sunflower oil generally range between €20–30 per liter, while premium organic brands may exceed €30 per liter.

Technical Indicators of Low-Temperature Cold-Pressed Sunflower Seed Oil

Items	Technical Indicators	Remark
1. Sensory Indicators
Color	Light golden yellow or pale yellow, clear and transparent, with no turbidity or sediment.
Odor	Exhibits a natural sunflower seed fragrance	suitable for low-temperature cooking methods such as cold dishes and salads, maintaining the natural flavors of ingredients.
Smoke Point	Approximately 107℃	suitable for light frying, steaming, or direct consumption in daily cooking.
2. Physicochemical Indicators
Acid Value (expressed as KOH)	≤3 mg/g	indicating free fatty acid content; lower values indicate better quality.
Peroxide Value	≤10 mmol/kg	indicator of oxidation degree, cold-pressing technology can effectively reduce peroxide value.
Moisture and Volatiles	≤0.2%	low moisture content enhances storage stability.
Insoluble Impurities	≤0.2%	no cake residue or solid particles.
Iodine Value	110~140 gI₂/100g	indicating unsaturated fatty acid content, higher values indicate a higher degree of unsaturation.
Saponification Value	188~194 mg KOH/g	indicator of average molecular weight of fatty acids.
Refractive Index	1.466~1.469	a physical constant indicating oil type and purity.
Relative Density	0.918~0.923 g/cm³（20℃）
Heavy Metal Content	Lead ≤0.1 mg/kg, Arsenic ≤0.1 mg/kg	complies with food safety standards.
3. Nutritional Composition Indicators
Unsaturated Fatty Acids	Total content ≥88%	helps regulate blood lipid levels and reduce the risk of cardiovascular diseases.
Linoleic Acid (ω-6)	60%~70%	Cold Regions
Linoleic Acid (ω-6)	20%~30%	Warm Regions
Oleic Acid (ω-9)	15%~65%	varies significantly with climate.
Vitamin E	≥57 mg/100g	natural antioxidant that protects oil stability.
Phospholipids	trace amounts	beneficial for nervous system health.
4. Technical Features
Cold-pressing Technology	Pressing temperature ≤50℃	preserves nutrients and reduces the formation of trans fatty acids.
Green Processing	Physical pressing without high temperature or chemical treatment	low energy consumption, low carbon emissions, conforms to sustainable production principles.

This video as follow demonstrates a cold-pressing process of sunflower oil:

Sunflower Seed Oil Extraction Process

07
Mar 25
1

GMP Hydraulic Oil Press Delivery to India

Tags : Essential Oil GMP Hydraulic Oil Press

On February 5, 2025, a GMP50/280 hydraulic oil press machine was delivered from Qingdao Port to Nhava Sheva Port, India. The machine is scheduled to be installed at a GMP-certified essential oil production facility in Pithampur, which is near Indore in Madhya Pradesh, and this facility specializes in producing a variety of essential oils, such as almond oil, rapeseed oil, coriander seed oil, grape seed oil, morinda seed oil.

GMP50/280 oil extraction machine is engineered to conform to the most up-to-date GMP standards across the globe. Leveraging SIMEC technology, it offers steadfast support for essential oil production processes, ensuring full compliance with GMP certification requirements.

A vertical press force of 380 tons exerted on the oil materials effectively ensures the high efficiency of the oil extraction process. Notably, throughout the entire oil extraction procedure, no external heat is applied to the oil materials, preventing any temperature increase. This approach guarantees that the resulting essential oil retains its natural flavor. Moreover, all the beneficial nutrients within the oil materials are well-preserved. As a result, cold-pressed essential oil serves as an outstanding, naturally-derived ingredient for skincare and anti-aging purposes.

SIMEC stands as a steadfast and dedicated technological collaborator for enterprises holding GMP certification. By your side, we harness our profound expertise to endow your business with a commanding edge.

GMP Compliance Highlights

1. Material Standards
Contact parts	SS 316 with mirror finish (food-grade compliance).
Non-contact parts	SS 304 cladding (1.5mm thickness, brushed finish) to prevent rusting under chemical exposure, adhering to GMP norms.
Gaskets	Food-grade certified.
2. Functional Requirements
Motor	Explosion-proof motor (415V ±10%, 50Hz ±5%) with SS 304 protective cabinet.
Hydraulic system	Hydraulic station and control device with SS 304 protective cabinet.
Control cabinet	Explosion-proof
3. Oil Collection System: movable and made of SS 304

Packing Details:

Mark	Items	Packing Dimensions (LWH)	Volume	Gross Weight
SIMEC	GMP50/280 hydraulic oil press, spare parts, filter cloth and tool kit.	250014201700 mm	6 m³	2600 kgs

04
Mar 25
0

About Canola Oil

Tags : Canola Oil Cold Pressing Technology

Canola is a crop with plants from three to five feet tall that produce pods from which seeds are harvested and crushed to create canola oil and meal. These plants also produce small, yellow flowers, which beautify the environment.

Canola seeds contain approximately 45 percent oil, a high percentage packed into seeds similar in size to rapeseed but distinguished by their brownish-black hue. Although they look similar, canola and rapeseed plants and oils are very different. Canadian scientists used traditional plant breeding in the 1960s to practically eliminate two undesirable components of rapeseed, erucic acid from oil and glucosinolates from meal, to create “canola,” a contraction of “Canadian” and “ola.” Canola oil is prized for its heart-healthy properties with the least saturated fat of all common culinary oils.

Canola belongs to the Brassica plant family, which also includes mustard, broccoli, Brussels sprouts, and cauliflower. Besides China, canola is cultivated in Canada, Australia, Europe, and the United States. Canola seed is also known as “double low rapeseed” due to its low levels of erucic acid and glucosinolates, particularly in China and Europe. Canola plants are easy to grow, need fewer pesticides, and the oil extraction process is efficient with little waste.

Production: Canola plants are grown in suitable fields, harvested, and seeds are transported to processing facilities. After cleaning and moisture adjustment, canola seeds are pressed to release the canola oil. Following extraction, the canola oil can be further refined to produce a shelf-stable, clear and neutral-tasting oil which can be stored at room temperature for about one year. The remaining solid parts of canola seed can be processed into canola meal, a protein-packed product used in animal feed.

Health Benefits: Canola oil has a beneficial fatty acid profile. It’s low in saturated fat, reducing the risk of heart disease. It’s rich in monounsaturated fats like oleic acid, and polyunsaturated fats including omega – 3s, which support brain health and reduce inflammation.

Culinary Versatility: Its neutral flavor and high smoke point (about 400°F/204°C) make it suitable for frying, sautéing, baking, and salad dressings. It doesn’t overpower other ingredients and can withstand high-heat cooking without breaking down.

Advantages of Cold-pressed Canola Oil
1. Nutrient Retention: cold-pressed extraction, without heat or chemicals, preserves more vitamin E and omega-3s, which are good for skin and immune system. Zero trans fats, more omega 6 & 3 than olive oil. High in vitamin E, low in saturated fat.
2. Pure and Natural Flavor: it has a fresh, delicate taste, ideal for salad dressings and raw food recipes, free from off-flavors of refined oils.
3. Minimal Processing: involving only mechanical pressure, it’s more environmentally friendly and less likely to introduce contaminants.

In summary, canola oil, especially cold-pressed, is a healthy, versatile, and sustainable cooking choice, appealing to health-conscious consumers and chefs.
Advanced cold pressing technology can maximize the value of canola oil.

24
Feb 25
4

GMP Hydraulic Oil Press

Tags : GMP Hydraulic Oil Press GMP Standards

Good Manufacturing Practices (GMP) is a set of mandatory standards applicable to pharmaceutical, food and other industries. GMP requires pharmaceutical, food and other manufacturers to adopt good production equipment and technology to ensure that the quality of the final product, including food safety and hygiene, can meet the requirements of regulations.

GMP50/280 hydraulic oil press machine is designed to meet the latest GMP standard worldwide. Adopting SIMEC technology and equipment can facilitate GMP certification. All the raw material contact parts are made of food grade 316 stainless steel. All the other non-contact parts have 304 stainless steel cladding to fulfill GMP norms.

Special oil-proof & dust-proof sealing devices. All high quality robust steel construction. Overall stainless steel proof plate to exterior surface. The machine can produce almond oil, rapeseed oil, coriander seeds oil, grape seed oil, morinda seed oil, avocado oil, coconut oil, baobab oil, etc.

Technical Parameters

NO.	Description	Parameter
1	Model	GMP50/280
2	Power	4 kW
3	Capacity	150 kg/hr of avocados
4	Inner Diameter of Material Barrel	450 mm
5	Height of Material Barrel	700 mm
6	Quantity of Barrels	2 pcs
7	Working Pressure	50 MPA
8	Max Pressure	60 MPA
9	Press Force	380 tons
10	Package Dimension (LWH)	250014201700 mm
11	Gross Weight	2600
	GMP Standards
12	Material of Contact Part	SS316
13	SS Cladding on Non-Contact Part	SS304
14	Finishing of Contact Part	Mirror Finish
15	Finishing of Non-Contact Part	Brushed Finish SS304 Cladding
16	Motor	Explosion-proof motor
17	Control Cabinet	Explosion-proof
18	Gasket	Food grade

26
Jan 25
0

Baobab Seed Oil and Baobab Fruit Powder

Tags : Baobab Fruit Powder Baobab Seed Oil Baobab Tree

The baobab tree is the longest-living tree species from Africa. Although the growth cycle is very long, the tree age can be as long as 200 to 6,000 years. This tree species can only grow in a non-pollution environment, which makes it more precious in the global warming environment of the 21^st Century. This tree has many usages which include medicinal application, source of food as well as a herb. The tree leaves are rich in protein, which are used consumed as vegetables, they are also used in food preservation methods. Its fruits are rich in vitamin C, which can be eaten raw or consumed with juice, yoghurt and milk. The vitamin C content is 10 times that of most citrus fruits, and the mineral and amino acids contents are more comprehensive and rich, as shown in the following tables.

Mineral Components Contained in Baobab Tree’s Seeds and Fruits

Mineral Components	Fruit Flesh （μg/ g Net Weight）	Seed （μg/ g Net Weight）
Iron	17	18.3
Calcium	3410	3950
Magnesium	2090	3520
Manganese	–	10.6
Zinc	10.4	25.7
Sodium	54.6	19.6
Phosphorus	733	6140

Components of Some Important Amino Acids Contained in Baobab Trees, the Fruits and Seeds

Amino Acid Components	Fruit Flesh （mg / g Net Weight）	Seeds（mg / g Net Weight）	(WHO) Ideal Protein Contents Suggested
Leucine	–	14.0	7.0
Threonine	0.65	6.98	4.0
Valine	1.62	11.6	5.0
Isoleucine	1.37	8.27	4.0
Lysine	1.63	11.2	5.5
Tryptophan	0.18	2.81	4.0
Glutamic acid	3.94	48.9	–

Note: Both the fruit flesh and seeds contain the ideal protein suggested by WHO, and the ideal protein content of the seeds is more than twice the standard one.

With the help of SIMEC technology, the following products can be developed: baobab fruit powder and baobab seed oil. Product Features: Precious Value Contained.

Baobab Fruit Powder
Features: The baobab fruit is the only fruit in the world that is naturally dry when it becomes ripen. Therefore, the materials of baobab fruit powder harvested are 100% natural and are packaged in vacuum approach right after harvesting .
Consumption and Efficacy:
1. The fruit powder has a taste similar to that of lactic acid bacteria, which can relieve thirst.
2. It can be sprinkled to milk or cereal and stirred for consumption.
3. It can be used in bread baking as an alternative of the cream of tartar.
4. It can be added into salad directly for consumption without any additional cooking.
5. During the summer season, it can be blended into a variety of smoothies or sparkling drinks.
6. It can be used as the sweetener during the ferment process for making beer.

Baobab Seed Oil
Features: In some regions of Africa, baobab seed oil has been used for centuries in food, pharmaceutical, cosmetic applications and lubrications for manufacturing, as well as in soap and skin care products. The seed oil contains high proportion of linoleic and oleic acid, accounting for 39.42% and 26.07% of the total fat, respectively. Among others, palmitic and α-linolenic acid are also excellent sources of monounsaturated and polyunsaturated fatty acids. The content of β-carotene is 43.36μg/100g, which is twice that of palm kernel and 7 times that of corn oil. It is rich in vitamin A, D, E and other antioxidants as well.

Usage and Efficacy:
1. It can be applied directly to the skin or made into skin care products. It has light-yellow liquid and is fast to be absorbed.
2. It is helpful for skin restoration, anti-allergic, emollient, skin regeneration, anti-inflammatory, and relieving the pain caused by burns.
3. In African traditions, it has been used as the massage oil for a long time, which is easy to penetrate, reduce contracture and muscle pain.
4. For pregnant women, it can prevent stretch marks formation.

Regions and Harvesting:
There are two major harvesting regions, one is in Manicaland in the eastern Zimbabwe (the same region for avocado harvesting) and the other is in Matabeleland North in the southern region of the country. On average, a baobab fruit contains 30 seeds and can extract about 5% of seed oil.

Product Features and Advantages:
Whether in powder or seed oil form, the all its products have the super-nutritive characteristics of “super fruit”, which help fulfill the pursuit of healthy life for consumers. It’s rare and extremely precious, and SIMEC can provide you with the best baobab products due to the factory’s geographical locational advantage and technology advantage.

The life cycle of the baobab products is currently at the emerging stage with lots of room for growth and it is worth for further development which gives you the opportunity to get a head start in the market. SIMEC provide the most advanced technology for the production of baobab fruit powder and baobab seed oil.

21
Nov 24
0

Brief Discussion on Oil Press Machine

Tags : Oil Press Oil Press Machine

Oil press machine, as a device for extracting vegetable oil from plant raw materials, is important in the modern oil industry. SIMEC will conduct a popular science discussion on the functionality of oil press, aiming to briefly introduce its working principle, classification and application.

Application of oil press machine
Oil press machines are widely used in pressing various oil crops, such as soybeans, peanuts, cottonseeds, rapeseeds, and sesame seeds, etc. Through advanced technology and design, they achieve efficient pressing, improving oil yield. Equipped with automatic control systems, they ensure the stability and safety of the pressing process, while emphasizing energy conservation and environmental protection. These machines utilize low energy consumption and exhibit high efficiency.

Oil press machines can also equip the functions of impurity removal, refining, filtration, etc., to achieve integrated production and improve production efficiency and product quality.

Classification of oil press machine
Oil pressing machines can be divided into many types according to their structure and pressing methods. Common ones include screw oil press machine, hydraulic oil press machine, etc. These different types of oil pressing machines have their own characteristics in pressing efficiency, oil yield, application scope, etc., and can meet the pressing needs of different oil crops.

Screw oil press machine works by physically pressing pre-treated oil material. The material enters the pressing chamber via a hopper, where a rotating screw pushes it. The resulting high pressure generates friction, causing movement and heat. The screw’s design, with a gradually increasing diameter and decreasing pitch, enhances pressing efficiency and thermally denatures proteins, facilitating oil precipitation.

Hydraulic oil press machine adopts cold processing technology to extract oil. It provides 200-380 tons of vertical pressing force on oil material, but will not generate friction and heat. The oil material will not be heated, no temperature rise during oil extraction process, hence no protein denaturing, no nutrients loss. The continuous high pressure is generated by hydraulic station, controlled in automatic mode. The electricity consumption of oil extraction process is much lower than screw oil press.

Oil press machine in modern life
Oil press machines are widely utilized in modern life, not only in the traditional oil processing industry but also gradually in non-food industry fields such as pharmaceuticals and chemicals. At the same time, with people’s increasing attention to healthy eating, home use oil pressing machines have gradually become popular, so that people can make healthy and safe cooking oil at home.

Through continuous technological innovation and equipment upgrading, SIMEC oil pressing machine will further improve the pressing efficiency, oil yield and product quality, and provide more convenience and protection for people’s healthy diet and life. More and more fields of use can also be explored, if you have new ideas, you can also discuss with SIMEC, we’d love to make progress in communication.

08
Nov 24
0

Methods for Dehydrating Avocado

Tags : Avocado dehydrator Avocado Dryer

For avocado enthusiasts seeking to create a portable and healthier snack, the following four dehydration methods provide solutions.

Food Dehydrator Method
The most common and well-known way to dehydrate avocados is to use a dehydrator. This is the quickest and most efficient dehydration process, taking only a few hours.

To dehydrate avocados using a traditional dehydrator, you can follow these steps:
1. Take your room-temperature avocado and cut it into thin slices, about 3mm thick.
2. Place the slices in a single layer on a dehydrator tray.
3. Set the dehydrator temperature to 57℃ and let it run until the avocado slices are dehydrated, which can take anywhere from 8 to 12 hours, depending on the dehydrator and the thickness of the slices.
4. Check the slices every few hours to see if they are dry, and rotate the trays.
5. Once they are dry and leathery, with an apperance similar to fruit leather, remove the slices from the dehydrator and allow them to cool completely.
6. Store the dehydrated avocado slices in an airtight container or resealable plastic bag in a cool, dark place.

Setting of Dehydrator Temperature in Commercial Applications: When dehydration begins upon the introduction of food, the ongoing evaporation of moisture from the food extracts heat, causing the actual temperature within the chamber to be approximately 20 degrees Fahrenheit lower than the set temperature. This phenomenon is considered normal. As the moisture content in the food decreases, the temperature within the chamber gradually rises to approach the predetermined set value.

Air Drying Method
Air drying avocados is one of the simplest methods for dehydrating avocados. This method works best in a dry and warm environment. It is helpful to lay the avocados on a drying rack or dehydrating screen to ensure proper air circulation and even drying.

To air-dry avocados, follow these steps:
1. Cut the avocado in half and remove the pit.
2. Place the avocado halves cut-side up on a paper towel to absorb excess moisture.
3. Leave the avocados to air-dry in a warm, dry place for a few days or until the cut surfaces have become firm and slightly wrinkled.
4. Store the air-dried avocados in an airtight container until ready to use.

You should note that air-drying avocados can help prolong their shelf life, but it won’t prevent them from eventually going bad. You should still use or freeze them within a few days.

Oven Drying Method
Oven drying is a method of dehydrating used to extend the shelf-life of food for people interested in long-term food preservation. Many people who do not have or want to purchase a traditional dehydrator choose to use this method of dehydrating their food.

To oven-dry avocados, follow these steps:
1. Preheat the oven to 93℃, or the lowest temperature your oven allows.
2. Cut the avocado into thin slices, approximately 3mm thick.
3. Place the slices on a baking sheet lined with parchment paper or a silicone baking mat.
4. Bake the slices in the oven for 4 to 6 hours, or until they are dry and slightly leathery in texture.
5. Check the slices every hour and rotate the baking sheet if necessary to ensure even drying.
6. Once they are dry, remove the slices from the oven and let them cool until they reach a crispy texture.
7. Store the oven-dried avocado slices in an airtight container or resealable plastic bag in a cool, dark place.

When oven-drying avocados, it can be a slower process compared to using a dehydrator. It’s important to keep a close eye on the avocados and monitor them regularly to avoid over-drying, which can cause them to become too brittle and lose their flavor and nutrients.

Sun Drying Method
If you live in a sunny and warm climate, you can use the sun to dry your avocado slices. This method takes the longest, but it’s also the most natural and eco-friendly way to preserve all the health benefits of avocados.

Sun-drying avocados is a traditional method of preserving food. However, achieving consistent results can be challenging, and it may pose food safety risks if not done correctly.

Here’s how to sun-dry avocados:
1. Cut the avocado into thin slices, approximately 3mm thick.
2. Place the slices on a clean, flat surface that has been covered with a layer of cheesecloth to prevent contamination.
3. Position the surface in a sunny, well-ventilated area where the temperature will remain between 35°C and 46°C for several days.
4. Turn the slices every few hours to ensure even drying and to prevent mold or spoilage.
5. Continue drying the slices until they are dehydrated and slightly leathery. This process could take anywhere from 2 to 5 days, depending on the weather conditions.
6. Store the sun-dried avocado slices in an airtight container or resealable plastic bag in a cool, dark place.

If you choose to sun-dry avocados, remember that it can be a slow and unpredictable process. It’s important to regularly monitor the slices to ensure they are drying properly and to prevent contamination. Using a dehydrator or oven to dry avocados offers a more controlled and consistent drying environment.

23
Sep 24
3

Classification Method for Avocado Oil

Tags : Cold Pressed Extra Virgin Avocado Oil Crude Avocado Oil Extra Virgin Avocado Oil Pure Avocado Oil

Avocado oil has become common in kitchens around the world, renowned for its rich health benefits and wide applicability in cooking. On the shelves of supermarkets, different types of avocado oil attract the attention of consumers with their diverse packaging and labels, such as “extra virgin avocado oil”, “virgin avocado oil” and “pure avocado oil” and other names frequently appear. If you purchase avocado oil in bulk, you may come across a producer offering significant differences in price regarding “extra virgin avocado oil” versus “crude avocado oil”. What are the core differences between them? Let’s take a deep dive into the world of avocado oil and learn the difference between regular avocado oil and extra virgin avocado oil.

Since avocado oil lacks universally defined quality parameters, people usually use the recommended values for olive oil as a reference. The quality standards for olive oil can be found in the Codex Alimentarius and the International Olive Council’s regulations.

Actually, a classification method for avocado oil can be developed based on its extraction method and fruit quality.

Avocado Oil Classification: Extra virgin avocado oil
Definition Method: Avocado oil of a higher quality, “extra virgin”, corresponds to that produced from high-quality fruit, extracted only with mechanical methods, using a temperature below 50 °C and without the use of chemical solvents.

Avocado Oil Classification: Virgin avocado oil
Definition Method: “Virgin” avocado oil is produced with fruit of a lower quality (with small areas of rot and physical alterations), extracted by mechanical methods, using a temperature below 50 ° C and without the use of chemical solvents.

Avocado Oil Classification: Pure avocado oil
Definition Method: “Pure” avocado oil is a type of oil for the production of which the quality of the fruit is not important; it is a bleached and deodorized oil, infused with the natural flavor of herbs or fruits. “Pure” edible avocado oil is a product with at least 98.5% refined avocado oil.

Avocado Oil Classification: Mixed avocado oil
Definition Method: “Mixed” avocado oil is combined with olive, macadamia, and other oils. Therefore, it presents sensory and chemical characteristics that are variable.

Avocado Oil Classification: Crude avocado oil
Definition Method: The “crude oil of avocado” is a slightly amber-colored fatty liquid, obtained by physical extraction of the avocado pulp and the seed of the avocado fruits.

In actual trade activities, avocado oil can be classified according to different levels of free fatty acid content. (% m/m expressed in oleic acid)

Extra virgin avocado oil ≤ 0.8
Virgin avocado oil ≤ 2
Ordinary virgin avocado oil ≤ 3.3
Pure avocado oil ≤ 1.03
Refined avocado oil ≤ 0.3
Crude avocado oil: no limit

It is imperative to discuss the extraction methods of avocado oil: refining and physical pressing. Refined avocado oil is commonly refined, involving processes like filtering and deodorization, resulting in a neutral- flavored oil with a higher smoke point. Extra virgin avocado oil undergoes physical pressing, a cold processing technique that preserves the fruit’s natural flavors and nutrients by pressing the avocado oil at low temperatures. This gentle extraction method yields an oil with a distinct flavor profile and lower smoke point.

As a technology and equipment supplier, SIMEC focus on the extraction method of extra virgin avocado oil. Adopting SIMEC physical pressing method, there’s no heating for the avocado pulp and no temperature rise during the cold extraction process of avocado oil. The quality of avocado oil can achieve the procurement standard in cosmetic and food industries.

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