Large-scale flax oil processing machine,complete set of flax oil production line,low temperature cold pressed linseed oil pressing equipment,flax oil refining machine,complete set of equipment for artemisia oil processing production line
   The preparation of linseed oil can be cold pressing and hot pressing, or leaching equipment can be used to make oil. Whether it is pressed or leached, the flaxseed oil produced must be refined by oil refining equipment before it can be consumed. Cold-pressed linseed oil is also called low-temperature pressing. The linseed oil is squeezed and processed in an environment of no higher than 40 degrees, and then refined through filtration, dewaxing and other processes. The color is golden and smells light with linseed fragrance.
   The linseed oil produced by cold pressing technology retains the nutritional essence of linseed. It does not use fire or steaming. The raw materials are directly pressed after cleaning. All refining processes are carried out at room temperature below 40 degrees to prevent high temperature oxidation. Cold pressing Linseed oil has no peculiar smell and no other pigments caused by high-temperature oxidation. When refining cold-pressed linseed oil, all refining equipment, process pipelines, valves, storage tanks, etc. use stainless steel materials to prevent iron and copper ions from accelerating Oxidation of linseed oil.
   
Flax oil extraction process:

　　 (1) cold pressing method

　　The production process of cold pressed oil

　　The harvesting and screening of linseed→linseed→cleaning impurities→hulling→crushing→low-temperature pressing→squeezing linseed crude oil→coarse filtration→fine filtration→low-temperature crystallization and crystallization→low-temperature filtration→cold pressing linseed oil

　　 cold pressing process characteristics:

　　 1. Avoid the harmful substances caused by the degradation of fats and carbohydrates and the denaturation of proteins during high-temperature pressing.

　　2. It avoids the darkening of linseed oil caused by high temperature and the appearance of paste smell.

　　3. After multiple filtration, it avoids direct contact of chemical substances with active ingredients and secondary pollution caused by sulfuric acid degumming, caustic soda deacidification, and activated clay decolorization in the hot pressing process.

　　4. Avoid high-temperature distillation and deodorization, effectively preventing high temperature from destroying the polyunsaturated fatty acid in linseed oil-α-linolenic acid, effectively retaining the natural and complete nutrients, and making it easier for the body to absorb and supplement.

　　 Advantages: Almost all the nutrients in the flaxseed are retained, the taste is refreshing and not greasy, and the content of polyunsaturated fatty acids is rich.

　　(2) hot pressing method

　　The preparation process of hot pressing oil

　　The harvesting and screening of linseed→linseed→cleaning impurities→dehulling→crushing→frying→squeezing linseed crude oil→coarse filtration→after filtration→degumming→washing→dehydration→decolorization→deodorization→hot pressing linseed oil

　　 hot pressing process characteristics

　　 1. It can increase the oil yield, improve the taste of the oil, and have a richer fragrance.

　　2. It is easy to cause high-temperature oxidative polymerization and decomposition to produce peroxides and certain harmful substances, which can destroy all kinds of nutrients.

　　3. There are many impurities, such as linseed dander, phospholipids, free fatty acids, etc., which affect the appearance and color of the oil and the internal quality of the oil.

　　 Advantages: Flaxseed oil has a rich taste and a high oil yield.

　　The refining process of flax oil:

　　 flax oil degumming hydration

　　The colloidal impurities in crude oil are mainly phosphorus. The presence of gelatinous substances such as phospholipids not only reduces the quality of the oil, but also promotes transitional emulsification between the fat and the lye during the alkali refining and deacidification process, which increases the difficulty of separation of the saponins and increases the loss of neutral oil. Therefore, it should be removed first.

　　 sesame oil deacidification

　　 Oil deacidification is mainly to remove free fatty acids in crude oil, as well as a small amount of colloids, pigments and trace metals in the oil. Deacidification operation is one of the important factors that directly affect the yield and quality of oil refining. The most widely used in industrial production is alkali refining and deacidification.

　　 flax oil decolorization

　　The oily color and some other impurities must be decolorized to reach the product quality standard. At the same time, it provides more favorable conditions for deodorization and refining. Decolorization must meet the final requirements of the color and luster of the product; remove relevant pigments and quantitative metals; further remove residual traces of saponins, phospholipids and other colloidal impurities and certain odor substances in the oil; remove polycyclic aromatic hydrocarbons and residual pesticides; reduce oil quality Oxidation value.

　　 flax oil deodorization

　　The purpose of oil deodorization is to remove odor-causing substances in the oil and other substances that are easy to volatilize, improve the smell and color of the oil, and increase the stability of the oil. The peculiar smell of oil, the peculiar smell produced by decolorization, the clam smell produced by the oxidation of oil, etc. In the deodorization stage, these unpleasant odors are required to be sprayed directly into the steam distillation at high vacuum and high temperature to remove them.