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Development method of rice amylose content standard physical sample

A technology for amylose content and standard products, which is applied in the preparation of test samples, testing starch contaminants, measuring devices, etc., and can solve problems such as hysteresis

Inactive Publication Date: 2021-02-09
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current status of standard samples for rice quality and composition analysis has seriously lagged behind actual needs

Method used

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  • Development method of rice amylose content standard physical sample
  • Development method of rice amylose content standard physical sample
  • Development method of rice amylose content standard physical sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Embodiment 1: a kind of development method of rice amylose content standard product, carries out following steps successively:

[0116] 1), collection of rice samples

[0117] After screening a large number of rice samples, 4 rice varieties were screened out - long-grain glutinous rice, Jiayin No. 2, Wujing 31 and Zhongzao 39, with a moisture content of about 14%. Determination of rice amylose (GB / T 15683-2008)>The content of rice amylose is detected in the following ranges: 0-2%, 9-12%, 14-18% and 24-27%.

[0118] The sample size selected for each rice variety is 10kg, which is reserved for use.

[0119] The above 4 paddy samples were first respectively carried out in the following steps 2) to 4).

[0120] 2), roughening and grinding of rice samples

[0121] First put the paddy sample in a huller to dehull to obtain brown rice; put the brown rice in a rice polisher to grind it into polished rice, and at the same time produce bran powder;

[0122] The peeling rates ...

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Abstract

The invention belongs to the technical field of rice quality detection and particularly relates to a preparation method of a rice amylose content standard physical sample. The method comprises the following steps of preparing a rice flour sample by using a rice sample, and performing moisture content detection, rice amylose content detection, uniformity inspection, long-term stability and short-term stability inspection and fixed value inspection. The method provided by the invention can be used for preparing rice standard physical samples with different amylose contents, can be used as a standard sample for detecting and analyzing the content of the rice amylose, and can also be used for checking of a measuring instrument, confirmation and evaluation of an analysis method, quality controlin a measurement process and the like.

Description

technical field [0001] The invention belongs to the technical field of rice quality detection, in particular to a method for preparing a standard physical sample of rice amylose content. Background technique [0002] For quite a long period of time in the past, in order to solve the shortage of food, my country’s rice production focused on increasing yield and ignoring quality. The research on rice quality and the selection of high-quality rice varieties were later than those in the United States, Japan, Australia, India and other countries. . In the past, the requirements for rice quality have always been limited to purchasing indicators, such as impurities, broken rice, etc. It is precisely because increasing rice yield has always been the development goal of the rice industry, ignoring the demand for "quality", that the research on rice quality in my country started relatively late. It was not until 1986 and 1988 that the agricultural industry standards "High Quality Edi...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N1/38G01N1/44G01N21/31G01N33/10
CPCG01N1/286G01N1/38G01N1/44G01N21/31G01N33/10G01N2001/2866
Inventor 邵雅芳朱智伟方长云朱大伟严清卢林胡贤巧
Owner CHINA NAT RICE RES INST
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