Novel method for extracting 4-hydroxy isoleucine product from trigonella

Abstract

The invention relates to a kind of new method for extracting 4-hydroxy isoleucine ammonia acid product from Semer Trigonellae (Trigonella foenum-graecum). The technology steps as follows: manufacturing Semer Trigonellae cribble, extracting, filtrating and concentrating ethanol solvent, concentrating liquid column chromatography separation, and concentrating eluant. The features lie in that as follows: after the step of concentrating eluant, there is a purification refining step of manufacturing 4-hydroxy isoleucine ammonia acid product; this step uses perethanol to have concentrated eluant acquired in the fore step with alcoholysis, and then make the supernate of it spray and dry in order to get medicinal extract; then make the medicinal extract dissolve with more than 98% ethanol; after precipitating and drying, it can be the medicine industry material product, 4-hydroxy isoleucine ammonia acid with 40% content; after concentrating and drying, the sedimentation of eluant with alcoholysis can be manufactured to 4-hydroxy isoleucine ammonia acid product with low content that can be used as foodstuff and health food material. The method has the advantages such as complete extraction of 4-hydroxy isoleucine ammonia acid product, simple process, easy operation, low wastage of raw material, low producing cost, high extraction ratio, and so on.

Description

technical field [0001] The invention relates to a method for extracting 4-hydroxyisoleucine from fenugreek, in particular to a method for extracting relatively high-purity 4-hydroxyisoleucine products. Background technique [0002] Fenugreek Trigonella FoenungraecumL is a plant of the Papilionaceae subfamily of beans. There are more than 70 species of plants in this genus, which are mainly distributed in Asia, Africa and the Mediterranean region. There are five kinds in my country, mainly produced in Henan, Anhui, Shaanxi, Ningxia and other places. The plant is mostly cultivated in our country. [0003] Fenugreek is also known as ludou, coriander, bitter bean, etc. Its seeds are bitter in taste and warm in nature, and have the functions of warming kidney yang, expelling cold and damp, and relieving pain. Folks in Shanxi and Gansu put the seed powder into steamed buns for steaming food, which can repel insects and treat children's food diseases. Its fruit is often used as ...

AI Technical Summary

Problems solved by technology

[0011] About the method for extracting 4-hydroxyisoleucine from Fenugreek, until the present invention, data reports all extract with 20% ethanol cold soaking method, repeat this extraction method and find a series of difficult problems, such as Difficult to filter, easy to flush, difficult to concentrate, easy to absorb moisture, etc.

Practice has shown that the main disadvantages of this process are: much loss of raw materials and low extraction rate of 4-hydroxyisoleucine, leaching with 20% ethanol, resulting in viscous extract and poor operability of the production process

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