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Method for extracting vitexin from mung bean hulls

A technology of mung bean peel and vitexin, which is applied in the direction of medical formula, medical preparations containing active ingredients, plant raw materials, etc., can solve the problems of few sources of vitexin, scattered growth, limited promotion of vitexin, etc., and achieve Simple operation, improved extraction rate, and easy implementation

Active Publication Date: 2020-01-03
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structural formula of vitexin is shown in formula I. It is a natural flavonoid compound extracted from Vitex leaves and Vitex seeds. However, because the plant Vitex is still in a wild state, it is common in southern mountainous areas but grows sporadically. Artificial planting There are very few Vitex vitex, and there is almost no real large-scale plantation of Vitex vitex. The Vitex leaves and Vitex seeds harvested by conventional Chinese medicinal materials are all mixed with Vitex japonica leaves, Vitex chrysanthemum and Vitex leaves and Vitex seeds. Mixed harvesting, not a single Vitexin species, which makes the source of vitexin less, which in turn limits the promotion of vitexin

Method used

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  • Method for extracting vitexin from mung bean hulls
  • Method for extracting vitexin from mung bean hulls
  • Method for extracting vitexin from mung bean hulls

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The method for extracting vitexin from mung bean skin of this embodiment includes the following steps:

[0044] (1) Aqueous solution containing mung bean skin

[0045] The cleaned mung beans are blanched with 2 times boiling water (that is, the mass-volume ratio of mung beans to wastewater is 1g:2mL, the same below) for 5 minutes, and then filtered after blanching to obtain soaking liquid V 1 And blanched mung beans.

[0046] Cool the blanched mung beans to room temperature, and then freeze them at -18°C for 2h.

[0047] Take out the frozen mung beans and soak them in 2 times 50℃ warm water for 6 hours. After soaking, filter them to obtain soaking liquid V 2 Mung beans soaked in warm water, add soaking liquid V 2 With soaking liquid V 1 Combine to obtain soaking liquid V.

[0048] After soaking in warm water, the mung bean is rubbed to separate the skin and kernel of the mung bean, and the bean kernel is used for other purposes. The mung bean skin is dried for 4 hours at a temper...

Embodiment 2

[0055] The method for extracting vitexin from mung bean skin of this embodiment includes the following steps:

[0056] (1) Aqueous solution containing mung bean skin

[0057] The cleaned mung beans are blanched in 1.5 times boiling water for 5 minutes, and filtered after blanching to obtain soaking liquid V 1 And blanched mung beans.

[0058] Cool the blanched mung beans to room temperature, and then freeze them at -5°C for 3 hours.

[0059] Take out the frozen mung beans and soak them in 2.5 times of 45℃ warm water for 7 hours. After soaking, filter them to obtain soaking liquid V 2 Mung beans soaked in warm water, add soaking liquid V 2 With soaking liquid V 1 Combine to obtain soaking liquid V.

[0060] After soaking in warm water, the mung bean is rubbed to separate the skin and kernel of the mung bean, and the bean kernel is used for other purposes. The mung bean skin is dried for 5 hours at a temperature of 45°C and a wind speed of 0.3 m / s.

[0061] The dried mung bean hulls are cr...

Embodiment 3

[0066] The method for extracting vitexin from mung bean skin of this embodiment includes the following steps:

[0067] (1) Aqueous solution containing mung bean skin

[0068] The cleaned mung beans are blanched in 3 times boiling water for 3 minutes, and filtered after blanching to obtain soaking liquid V 1 And blanched mung beans.

[0069] Cool the blanched mung beans to room temperature, and then freeze them at -25°C for 1 hour.

[0070] Take out the frozen mung beans and soak them in 3 times of 40℃ warm water for 8 hours. After soaking, filter them to obtain soaking liquid V 2 Mung beans soaked in warm water, add soaking liquid V 2 With soaking liquid V 1 Combine to obtain soaking liquid V.

[0071] After soaking in warm water, the mung beans are rubbed to separate the skins and kernels of the mung beans, and the beans are used for other purposes. The mung bean skins are dried for 6 hours at a temperature of 50° C. and a wind speed of 0.1 m / s.

[0072] The dried mung bean hulls are cr...

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Abstract

The invention relates to a method for extracting vitexin from mung bean hulls, belonging to the technical field of vitexin extraction. According to the method for extracting the vitexin from the mungbean hulls, enzymolysis via cellulase is conducted at first to destroy cell walls, thereby facilitating dissolution of the vitexin; then dissolution of the vitexin is promoted through an alkyl glycoside surfactant; and ultrasonic extraction is conducted in ethyl alcohol with a volume fraction of 50%-80%, and separation is conducted to obtain the vitexin. According to the method, the mung bean hulls wide in source serve as a raw material; in the vitexin extraction process, dissolution of the vitexin is fully guaranteed, the extraction rate of the vitexin is increased, and the obtained vitexin has high yield and purity; and the method is easy to operate and implement and can be used for large-scale vitexin extraction.

Description

Technical field [0001] The invention relates to a method for extracting vitexin from mung bean skin, and belongs to the technical field of vitexin extraction. Background technique [0002] Cardiovascular and cerebrovascular diseases are the most common type of diseases in human beings and have become the leading cause of death in the world population today. According to WHO estimates, cardiovascular and cerebrovascular diseases cause at least 12 million deaths worldwide each year, and they have become the number one enemy of human health. The high incidence and mortality of cardiovascular diseases has led to the direction of drug development and production. There are many kinds of proprietary Chinese medicines used for the treatment of cardiovascular disease, but there are no more than three major types (Fragrance and warming, promoting blood circulation and removing blood stasis). Judging from the current sales situation in the retail market, vitexin has a good sales situation...

Claims

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Application Information

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IPC IPC(8): C07D407/04A61K36/48A61P9/00
CPCA61K36/48A61P9/00C07D407/04
Inventor 罗磊杜冠尚张向辉段雪莹夏迎利马丽苹焦昆鹏
Owner HENAN UNIV OF SCI & TECH
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