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Lycium barbarum seeds contain 18%~22% oil, including a large amount of unsaturated fatty acid, oleic acid, palmitic acid and a small amount of myristic acid, arachidonic acid, etc. The content of unsaturated fatty acid is higher than 80%.
The fatty acids in the seed oil were detected by gas chromatography-mass spectrometry, and a total of 21 fatty acids were detected, among which linoleic acid contained 62.6%, followed by oleic acid and palmitic acid, which were 16.7% and 10.4%, respectively. In addition, wolfberry seed oil also contains vitamins A, D, E, K, Ca, Mg, Na, Fe and other trace elements, and the content of phospholipids and β-carotene is also very considerable.
1. Regulating blood lipid: boxthorn seed oil is called "blood vessel scavenger", and its content of unsaturated fatty acid, linolenic acid and oleic acid is as high as 85%. It also contains a large amount of phospholipids, which can reduce plasma cholesterol, reduce cholesterol deposition on the blood vessel wall, and prevent blood lipid and atherosclerosis.
2. Anti aging: boxthorn seed oil contains SOD and adds VE, which can eliminate the damage of superoxide free radicals to skin cells, improve the ability of skin to absorb oxygen, delay skin aging.
3. Fade color spots: boxthorn seed oil has obvious fade effect on senile spots and melasma pigmentation.
4. Boxthorn seed oil is rich in lutein and zeaxanthin, which has a good therapeutic effect on early glaucoma, cataract, conjunctivitis and other eye diseases.
1. Squeezing method
The technological process of extracting wolfberry seed oil by pressing method: wolfberry seed pretreatment → embryo rolling → pressing → crude oil → refining → seed oil products
The wolfberry seeds are crushed after impurities are removed, and then softened in a softening pot. The softened moisture is controlled at 18% - 20%, heated to 85 ℃, and kept for about 40 minutes to soften all the broken wolfberry seeds. Then they are moved to a pan for frying. After 20 minutes, they are poured into a cake pressing ring and pressed into a cake embryo, and pressed while hot to obtain the wolfberry seed crude oil.
2. Solvent extraction method
The leaching method is to use solvent to dissolve the oil and extract the oil from the oil germ through the action of penetration, molecular diffusion and convection diffusion. The general method is to mix the material and solvent in a certain proportion and place them for a period of time, let them fully contact and combine, and finally separate the oil from the extract.
3. Supercritical CO2 extraction
Supercritical CO2 extraction technology is a new generation of highly efficient separation technology that is being developed at home and abroad. Because of its unique solvent properties, it is widely used in the extraction of functional oils.
4. Ultrasonic assisted extraction
Among many extraction technologies, ultrasonic-assisted extraction is also a widely used auxiliary extraction technology. Use the strong vibration generated by ultrasound and the strong cavitation effect to break the cells, so that the solvent molecules can penetrate into the tissue cells, better contact with the solute molecules, and better release the wolfberry seed oil.
Lycium barbarum seeds contain 18%~22% oil, including a large amount of unsaturated fatty acid, oleic acid, palmitic acid and a small amount of myristic acid, arachidonic acid, etc. The content of unsaturated fatty acid is higher than 80%.
The fatty acids in the seed oil were detected by gas chromatography-mass spectrometry, and a total of 21 fatty acids were detected, among which linoleic acid contained 62.6%, followed by oleic acid and palmitic acid, which were 16.7% and 10.4%, respectively. In addition, wolfberry seed oil also contains vitamins A, D, E, K, Ca, Mg, Na, Fe and other trace elements, and the content of phospholipids and β-carotene is also very considerable.
1. Regulating blood lipid: boxthorn seed oil is called "blood vessel scavenger", and its content of unsaturated fatty acid, linolenic acid and oleic acid is as high as 85%. It also contains a large amount of phospholipids, which can reduce plasma cholesterol, reduce cholesterol deposition on the blood vessel wall, and prevent blood lipid and atherosclerosis.
2. Anti aging: boxthorn seed oil contains SOD and adds VE, which can eliminate the damage of superoxide free radicals to skin cells, improve the ability of skin to absorb oxygen, delay skin aging.
3. Fade color spots: boxthorn seed oil has obvious fade effect on senile spots and melasma pigmentation.
4. Boxthorn seed oil is rich in lutein and zeaxanthin, which has a good therapeutic effect on early glaucoma, cataract, conjunctivitis and other eye diseases.
1. Squeezing method
The technological process of extracting wolfberry seed oil by pressing method: wolfberry seed pretreatment → embryo rolling → pressing → crude oil → refining → seed oil products
The wolfberry seeds are crushed after impurities are removed, and then softened in a softening pot. The softened moisture is controlled at 18% - 20%, heated to 85 ℃, and kept for about 40 minutes to soften all the broken wolfberry seeds. Then they are moved to a pan for frying. After 20 minutes, they are poured into a cake pressing ring and pressed into a cake embryo, and pressed while hot to obtain the wolfberry seed crude oil.
2. Solvent extraction method
The leaching method is to use solvent to dissolve the oil and extract the oil from the oil germ through the action of penetration, molecular diffusion and convection diffusion. The general method is to mix the material and solvent in a certain proportion and place them for a period of time, let them fully contact and combine, and finally separate the oil from the extract.
3. Supercritical CO2 extraction
Supercritical CO2 extraction technology is a new generation of highly efficient separation technology that is being developed at home and abroad. Because of its unique solvent properties, it is widely used in the extraction of functional oils.
4. Ultrasonic assisted extraction
Among many extraction technologies, ultrasonic-assisted extraction is also a widely used auxiliary extraction technology. Use the strong vibration generated by ultrasound and the strong cavitation effect to break the cells, so that the solvent molecules can penetrate into the tissue cells, better contact with the solute molecules, and better release the wolfberry seed oil.
