CN100465255C - Eucommia oil and alpha-linolenic acid product prepared by using eucommia oil as raw material - Google Patents

Abstract

The content of the invention belongs to the technical field of health food and drug development, and relates to an Eucommia oil product extracted from Eucommia seeds, which is rich in essential fatty acids (α-linolenic acid and linoleic acid); The α-linolenic acid product with a content of 50% to 99% is obtained by extraction and separation. The above products can be developed into new food, health food or medicine directly or by adding other substances during implementation, and the remaining seed shells can be used as raw materials for extracting eucommia gum. The invention improves the comprehensive utilization rate of health-care and medical active ingredients in eucommia raw materials, and increases the economic value of eucommia seeds.

Description

Eucommia oil and α-linolenic acid products prepared from Eucommia oil

The content of the invention belongs to the technical field of food, health food and drug development, and relates to an eucommia oil product prepared from eucommia ulmoides seeds and a high-content α-linolenic acid product extracted from eucommia ulmoides oil.

Eucommia ulmoides Oliv (Eucommia ulmoides Oliv) is a kind of precious Chinese medicinal material and industrial raw material for rubber extraction distributed in the middle and west of my country. At present, in the practical field, Eucommia ulmoides Oliv is mostly used as medicinal material, or medicinal active ingredients are extracted from leaves and then developed into natural Health food, or extraction of natural rubber, but Eucommia ulmoides seeds and their seed oil have not yet been effectively developed and utilized.

Eucommia ulmoides seeds are rich in eucommia oil (about 28% oil content). The content of unsaturated fatty acids in Eucommia oil is extremely high, among which the essential fatty acids (α-linolenic acid and linoleic acid) account for more than 73% of the fatty acid composition, the most prominent is that the content of α-linolenic acid is as high as 61%, and it also contains A small amount of aucubin, which has the effect of nourishing the liver, is unmatched by other oils. In the past, α-linolenic acid could only be ingested from food. It is metabolized into eicosapentaenoic acid (EPA) in the human body, and then metabolized into docosahexaenoic acid (DHA). A large number of studies have confirmed that EPA has the effect of lowering blood lipids and platelet coagulation, lowering blood pressure, and reducing the formation of thrombus, so it can prevent diseases such as cerebral thrombosis and myocardial infarction; DHA can promote the development of the nervous system, improve learning and memory functions and retinal reflexes, and prevent aging. Dementia and cancer, anti-allergy and other effects. Only a sufficient intake of α-linolenic acid can ensure the normal performance of the above physiological functions. Therefore, it is particularly significant for the health care effect of the middle-aged and the elderly, the promotion of children's development, and the improvement of learning and memory functions. In addition, the α-linolenic acid metabolite DHA is also the main component of phospholipids in the nervous system such as the brain and retina. It is indispensable for the development of infants and plays an important role in the development of the nervous system, brain and retina of the fetus. Pregnant women should supplement α-linolenic acid during pregnancy and after the baby is born to ensure the normal development of the baby's brain. Therefore, my country's unique Eucommia oil (rich in α-linolenic acid) can be used as a new type of health food for pregnant women and infants.

According to statistics, at present, the monthly consumption of vegetable oil by urban residents in my country is 0.5 kg, with an average of 17 grams per day. If calculated according to soybean oil or rapeseed oil (both containing about 10%), the amount of α-linolenic acid is only 1.7 grams, far from the standard of 3 grams per day. It is not enough to exert the physiological functions of α-linolenic acid, such as enhancing learning and memory, preventing cardiovascular diseases and treating allergies. People have no problem in taking linoleic acid, but α-linolenic acid is relatively deficient, so it is an obvious fact that people are deficient in α-linolenic acid. In recent years, there have been bottled (350ml) linseed oil and linseed oil capsules (1000mg) in American pharmacies, which are marked as nutrient-enhanced oils to supplement α-linolenic acid. my country has also developed perilla oil and linseed oil, but my country's unique Eucommia oil has not yet been developed as an auxiliary material for food or health food or medicine.

The object of the present invention is to solve the problems existing in the prior art, and further provide an eucommia oil product prepared from eucommia seeds as a raw material and a high-content α-linolenic acid product extracted from the eucommia oil.

Eucommia ulmoides oil product described in the present invention is a kind of Eucommia ulmoides oil product that is made with eucommia ulmoides seed as raw material, 100Kg dry eucommia ulmoides seeds, remove seed shell with eucommia seed shelling machine, take out seed kernel 29Kg, cold press 4 times , propose eucommia oil 6kg, then extract the slag with solvent, get eucommia oil 2Kg, extract eucommia oil 8Kg in total, make soft capsules, promptly get eucommia oil product, this eucommia oil product consists of following weight percentage (%) material composition,

Fatty acid 80-89, glycerin 10-17,

Unsaponifiable matter 1~5;

Among them, palmitic acid, stearic acid, oleic acid, linoleic acid, α-linolenic acid and aucubin components are contained in the fatty acid, and the percentage value of each component in the total amount of fatty acid is,

Palmitic acid 4~8, stearic acid 1~3,

Oleic acid 10-20, linoleic acid 9-15,

α-linolenic acid 35~75, aucubin 0.0001~0.05.

The α-linolenic acid product of the present invention is an α-linolenic acid product with a content of 50%-99% obtained from the eucommia oil as a raw material through an extraction and separation method.

The production method of eucommia oil and α-linolenic acid described in the present invention is such: the eucommia seed is aired, sloughs off seed shell, extracts with seed kernel (through cold pressing, or solvent extraction, or CO _{Supercritical} extraction etc. method) The eucommia oil is produced, and after sedimentation (or centrifugation) or decolorization, the eucommia oil product is obtained. The eucommia oil is further extracted and separated to obtain α-linolenic acid products with a content of 50% to 99%. In practical applications, after the above two products are prepared, they can be directly developed into food, health food or medicine including soft capsules and oral liquids, or an appropriate amount of blood lipid and Flavonoid components (such as eucommia flavonoids) or antioxidants that prevent cerebral thrombosis, etc., and then develop them into food, health food or pharmaceuticals including soft capsules (0.08-2.5ml per pill), oral liquids . The remaining seed husk after making oil and extracting α-linolenic acid can be used as raw material for extracting eucommia gum (the content of gum is higher than that of bark and leaf, reaching more than 8%). The product of the invention improves the comprehensive utilization rate of health-care and medical active ingredients in the eucommia raw material, and increases the economic value of eucommia seeds.

Example: 100Kg of dried eucommia seeds were removed from the husk with a eucommia seed sheller, 29 kg of seed kernels were taken out, and 6 kg of eucommia oil was extracted through cold pressing 4 times, and then the dregs were extracted with a solvent to obtain 2 kg of eucommia oil. Extract 8Kg of eucommia oil, make soft capsules, and obtain the eucommia oil product. The remaining seed shell 71Kg is used as raw material for extracting Eucommia gum. For example, after purifying 8Kg of eucommia oil, 7.5Kg of α-linolenic acid (55% in content) is obtained, and 5.5Kg of α-linolenic acid (74% in content) is obtained after saponification with NaOH; α-linolenic acid (content is 87%) 4.0Kg; or continue to use silver nitrate-silica gel chromatographic separation, and elute with petroleum ether-ethyl acetate-methanol (9:0.1:0.1) under dark conditions to obtain α-linolenic acid 2.0Kg (content up to 99%). The obtained product (eucommia oil or α-linolenic acid) can be directly or added with other food or medicine to develop it into food, health food or medicine.

Claims (2)

1, a kind of is the Eucommia Oil product that raw material is made with bark of eucommia seed, it is characterized in that 100Kg is done bark of eucommia seed, sloughs kind of a shell with bark of eucommia seed decorticator, take out kind of a benevolence 29Kg, through cold press 4 times, Eucommia Oil 6kg is proposed, again with the solvent extraction of the slag dregs of rice, get Eucommia Oil 2Kg, total extracts Eucommia Oil 8Kg, makes soft capsule, promptly gets the Eucommia Oil product, this Eucommia Oil product is made up of the material of following weight per-cent

Lipid acid 80～89, glycerine 10～17,

Unsaponifiables 1～5;

Wherein contain palmitinic acid, stearic acid, oleic acid, linolic acid, alpha-linolenic acid and rhinanthin component at lipid acid, each component materials amount shared percent value in fatty acid total amount is,

Palmitinic acid 4～8, stearic acid 1～3,

Oleic acid 10～20, linolic acid 9～15,

Alpha-linolenic acid 35～75, rhinanthin 0.0001～0.05.

2, a kind of is that raw material extracts the alpha-linolenic acid product make with bark of eucommia seed, it is characterized in that said alpha-linolenic acid product is is that content that raw material makes through extraction separation is 50%～99% alpha-linolenic acid product with the described Eucommia Oil of claim 1.