The Best Flaxseed Oil Processing Method

Flaxseed oil contains an adequate amount of linolenic acid and the oil is usually extracted by low-temperature physical squeezing in the flaxseed oil production line. Because flaxseed oil has a balanced proportion of linolenic acid and linoleic acid, which is 1:4, and it is scientifically proven that when the ratio of linolenic acid to linoleic acid is 1:4, the human body can be in the healthiest state, and it is very difficult for various external bacteria to invade. Flaxseed oil can meet human health standards.

However, linolenic acid is highly heat-sensitive and easily oxidized. When the critical temperature is exceeded, the activity of linolenic acid begins to be destroyed. Therefore, when making flax seed oil, it is necessary to choose the physical pressing method at low temperature without any heating treatment. Low-temperature physical squeezing retains the activity of linolenic acid, and no additives in the whole process to maintain the natural quality of raw materials. Second, the physical pressing temperature is lower than the melting point temperature of the wax, so that the pressed flaxseed oil is free from the “dewaxing” procedure and avoids the damage caused by the dewaxing process.

Processing Steps of Flaxseed Oil Physical Press Line

The pressing production process keeps the most effective ingredients in flaxseed, such as polyunsaturated fatty acids, protein, dietary fiber, vitamins, trace elements and so on. The pressed oil is more suitable for a special supplement for human health. Normal temperature pressing method refers to the flaxseed oil extraction at room temperature under great pressure from physical machinery without the traditional process of high-temperature frying or steaming, so the normal temperature pressed oil still distributes in the undeformed protein cells and contains rich ingredients (linolenic acid and other nutrients).

The steps of flaxseed oil press line are mainly: Flaxseed selecting → screening → cleaning up impurities → crushing → flaking → conditioning →normal temperature pressing → residue separation → degumming →dehydrating → debittering → crystallization → cryogenic filtration → physical pressed linseed oil

Due to the unique production technology of normal temperature pressed linseed oil, the requirements for raw materials are more stringent, therefore, fresh and plump flax seeds should be selected. The acid value of oil produced by immature and aged grains is higher and the flavor is poor, while mildew and broken grains are liable to be polluted by aflatoxin, so immature, damaged, mildewed and aged grains cannot be used to produce flaxseed oil. In addition, the following indicators should also be controlled: oil≥32%, moisture≤9%, impurities≤2%, acid value (KOH)≤1.0mg/g, peroxide value≤5mmol/kg.

At present, the commonly used raw materials for pressing flaxseed contains 38%~45% of oil and 6.5%~8.5% of moisture

Advantages of Our Flax Seed Oil Production Line

First, our oil pressing line has flexible production capacity, it can be equipped with complete industry standard equipment or can also be customized according to the actual needs of different customers. The equipment has large processing capacity and low failure rate, which ensures higher working efficiency. The normal continuous working hours of the equipment are fully guaranteed and the service life is long, which can create greater economic benefits and production capacity for the users.

Second, the material of our low-temperature oil pressing line must be carefully selected, and the whole temperature during the oil extraction procedure is relatively low. Therefore, the color of the extracted crude oil is lighter and the acid value is lower. Generally, our production line does not require chemical refining, but only needs to go through hydration degumming, activated charcoal debittering, cooling, filtration, dewaxing, etc. which avoids the effect of chemical refining process such as alkali refining, decolorization of activated clay and high temperature vacuum deodorization on the quality of flaxseed oil.

Application of Low-Temperature Pressed Oil

Our production line uses pure physical methods to extract flaxseed oil, so no chemical reagents or chemical residue reagents are added during the extraction process, and the oil is suitable for making excellent high-quality cooking oil and cosmetics, or pharmaceutical additives. The oil has a unique flavor, which can be widely used for cooking various foods and dishes. It has high nutritional value and health care and ensures high antioxidant activity. What’s more, our low-temperature oil press line is especially suitable for producing special oils and fats in small-batch oil workshop.

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