Japonica rice gamma-aminobutyric acid low-pressure steam enriching and drying combined process test method

Abstract

The invention belongs to the technical field of agriculture, and particularly relates to a japonica rice gamma-aminobutyric acid low-pressure steam enriching and drying combined process test method The japonica rice gamma-aminobutyric acid low-pressure steam enriching and drying combined process test method comprises the steps of: 1, low-pressure steam enrichment: taking 100g of japonica rice to put into a material rack of an experiment table for low-pressure steam enrichment, which specifically includes: (1) carrying out a single-factor test; and (2) establishing a response model, i.e., preferably selecting three groups of factors on the basis of the single-factor test to establish the response model; 2, low-pressure superheated steam drying: drying the japonica rice after enrichment, which specifically includes: (1) carrying out a single-factor test; and (2) establishing a response model, i.e., preferably selecting three groups of factors on the basis of the single-factor test to establish the response model; 3, measurement of content of gamma-aminobutyric acid; and 4, data processing: repeating each group of single-factor test in the step 1 and the step 2 for three times, representing a result by using an average value plus and minus a standard deviation, drawing by using Origin8.0 software, and carrying out data analysis on a response surface test by using DesignExpert8.0.6 software.

Description

technical field [0001] The invention belongs to the field of agricultural technology, and in particular relates to a test method for the influence of low-pressure steam enrichment and drying combined process on the content of gamma-aminobutyric acid in japonica rice. Background technique [0002] γ-aminobutyric acid is a signal molecule that plays a role in plant germination, rooting and resistance to external environmental stress. The content of γ-aminobutyric acid will increase significantly. In the dormant state of rice, the content of natural free γ-aminobutyric acid per 100g is only 2-6mg, and most of them exist in the germ. The enrichment process of γ-aminobutyric acid in rice is to use a suitable environment to activate the germination of rice, absorb water in the embryo to form glutamic acid, and activate glutamic acid decarboxylase at the same time, so that glutamic acid accumulated in the germ part Under the action of glutamic acid decarboxylase, a large amount o...

AI Technical Summary

Problems solved by technology

[0005] After activation and germination of rice, nutrients are transformed, soluble substances increase, the structure becomes loose, and the water content is high and the physiological activity is high. It must be dried in time before storage or rice milling. If it is not dried in time, the rice The germ will continue to grow, and the nutrients will be lost, which will easily cause the rice to go moldy and deteriorate, thereby affecting the quality.

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