Soybean sprouts with high GABA (gamma-aminobutyric acid) and low phytic acid and production method of soybean sprouts

A technology of aminobutyric acid and production method, which is applied in the fields of botanical equipment and methods, horticultural methods, horticulture, etc., can solve the problems of many anti-nutrient components and few functional components, and achieves the goal of promoting growth, easy operation, and improving the level of physiological metabolism. Effect

Inactive Publication Date: 2019-08-16
NANJING AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The present invention aims to provide a soybean sprout with high gamma-aminobutyric acid and low phytic acid and its production method, so as

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select yellow-skinned soybean grains with full grains, high germination rate, and no damage, disinfect them with 1% sodium hypochlorite by volume, put them in clear water with a mass ratio of water to yellow-skinned soybeans of 1:4, and soak them at 30°C for 5 hours ; put the soaked yellow-skinned soybean grains into a germination machine, and germinate them in the dark at 25°C for 2 days. The culture medium was replaced every 24 hours. The phytic acid degradation rate in the prepared yellow-skinned soybean sprouts was 45%, and the GABA content reached 350mg / 100g DW.

Embodiment 2

[0025] The method of selection and disinfection of green-skinned soybean grains is the same as in Example 1. Put the sterilized green-skinned soybean grains in clean water with a mass ratio of water to green-skinned soybeans of 1:3, and soak at 30°C for 6h; Light germination was performed for 3 days. During this period, 2 mmol / L GABA aqueous solution was used to spray for 3 minutes every 1 hour. The spray flow rate was 200 mL / min, and the culture solution was replaced every 24 hours. The phytic acid degradation rate in the prepared green-skinned soybean sprouts was 65%, and the GABA content reached 405mg / 100g DW.

Embodiment 3

[0027] The method of selection, disinfection and soaking of black-skinned soybean grains is the same as in Example 1. Put the soaked black-skinned soybean seeds into a germination machine and germinate them in the dark at 28°C for 4 days. During this period, spray with 5mmol / L GABA aqueous solution for 2 minutes every 1 hour, and the flow rate of the spray liquid is 150mL / min. Replace every 24 hours A culture medium. The phytic acid degradation rate in the prepared black-skinned soybean sprouts was 75%, and the GABA content reached 420mg / 100g DW.

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Abstract

The invention relates to a production method of soybean sprouts with high GABA (gamma-aminobutyric acid) and low phytic acid and belongs to the technical field of food production. The production method is characterized in that soybean grains with biological activity are taken as raw materials and put in a sprouting machine for sprouting in the dark place after being screened, disinfected with sodium hypochlorite and soaked in clear water; during sprouting, a GABA water solution with the concentration of 0.25-5 mmol/L is used for spraying the soybean grains for sprouting, and the prepared soybean sprouts have the GABA content reaching 350-450 mg/100 g DW, and the degradation rate of phytic acid reaches 45%-80%. The method has the advantages of being easy to operate, short in production cycle, safe, pollution-free and suitable for industrial production.

Description

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Claims

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Application Information

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Owner NANJING AGRICULTURAL UNIVERSITY
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