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Rice special for beer and its breeding method

A technology for rice and beer, applied in the fields of application, food preparation, food science, etc., can solve the problems such as rice breeding and development research has not been carried out at home and abroad, and achieve the goal of reducing production cost, low gelatinization temperature, and improving yield and quality. Effect

Inactive Publication Date: 2008-05-28
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, rice breeding still takes food as the main goal, and research on rice breeding and development with industrial raw materials as the main goal has not yet been carried out at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: Cultivate beer-specific rice BR-1 from mutagenic mutant plants

[0017] The early rice variety "Jinzao 47" mainly planted in Zhejiang Province (the total starch of the original variety is 78.5%, the protein content is 10.9%, the alkali digestion value is 6.5, and the fat is 0.7%) is used as the material, and it is mutated by 300Gy cobalt-60 radiation. It was constructed in 2003 More than 16,000 second-generation mutant plants of mutagenesis were obtained. Keep an appropriate amount of seeds for later use, and the remaining seeds are processed into polished rice flour after shelling and refining, measure the total starch, and screen 12 rice plants corresponding to a total starch content of more than 85%; continue to plant the 12 rice lines screened, shell, Polished rice was made after grinding, and the alkali digestion value was determined. Taking the alkali digestion value greater than 6 as the standard, 12 strains were screened and obtained, and 11 sample...

Embodiment 2

[0018] Example 2: Comparison of physical and chemical properties between rice BR-1 for beer and some rice variety resources in my country

[0019] The physical and chemical characteristics of some rice variety resources in my country are compared in Table 1. The total starch content of existing rice is basically below 80%, and a few are about 80%. Since the goal of breeding is to improve nutrition, the protein content is generally high, and the alkali digestion value varies greatly. The beer special rice BR-1 bred according to the present invention has a total starch content as high as 87.9%, which is significantly higher than the rice varieties and resources currently produced, and simultaneously exhibits the characteristics of low protein, low fat and low gelatinization temperature.

[0020] Table 1. Comparison of physicochemical properties between rice BR-1 for beer and some rice varieties in my country

[0021]

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PUM

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Abstract

The invention relates to a beer paddy rice and a cultivating method thereof. The paddy rice contains over 85 percent of starch, below 10 percent of protein and below 0.5 percent of fat, with the other materials of mineral substance and micronutrient and alkali spreading value is more than Grade 6. The cultivating method comprises the procedures: paddy rice seeds are collected; appropriate amount of seeds are kept for use, and the other seeds are processed and made into polished rice; corresponding polished rice of the sample with the alkali spreading value over grade 6 is tested, and processed into polished rice powder; corresponding paddy rice strain with below10 percent of protein and below 0.5 percent of fat is tested; validated strain is reproduced and the stability of hereditary characters of the validated strain is commented; the beer paddy rice is obtained. The beer paddy rice cultivated by the invention is not only meet the paddy rice needed in beer production, but also is conducive to improving yield and quality of the beer and reducing beer production cost since the paddy rice has high total starch, low protein, low fat and low gelatinization temperature.

Description

technical field [0001] The invention relates to a special rice for beer and a cultivation method thereof. Background technique [0002] Rice contains 70% to 80% starch. The processing, cooking and eating quality of rice, as well as the formation and use of starch's gelatinization, expansion, viscosity, solubility, digestion and other qualities are all related to the characteristics of starch. Therefore, according to different application purposes, targeted genetic manipulation to design starch quality and cultivate new varieties of special rice will not only significantly increase the added value of rice, but also deepen the deep processing of rice, and will enrich and expand the scope of use and utilization of rice. Cultural connotation guides rice breeding to develop in the direction of "specialized and more specialized, excellent and superior". [0003] At present, rice breeding still takes food as the main goal, and research on rice breeding and development with indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/10A23L7/10
Inventor 吴殿星舒小丽吴伟刘鑫
Owner ZHEJIANG UNIV
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