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Method for brewing high gamma-aminobutyric acid (GABA) pear wine

A technology of aminobutyric acid pear wine and pear wine is applied in the field of fermentation engineering to achieve the effects of improving liver function, enhancing memory and improving health care function.

Inactive Publication Date: 2015-03-25
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of preparing high GABA pear wine by microbial fermentation has not been reported in domestic and foreign literature

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The brewing method of a kind of high γ-aminobutyric acid pear wine of the present invention comprises the following steps:

[0030] a. The composition of the screening medium is: glucose 20g / L, peptone 20g / L, yeast extract powder 10g / L, bromocresol green 0.1g / L, succinic acid 2g / L, glyoxylic acid 2g / L.

[0031] b. Preliminary screening of GABA strains: select high sugar content, strong aroma, and fully mature snow pears, remove the core of the fruit, cut the skin into 2×3cm small pieces, and use a screw juicer to squeeze the juice; then take 100mL respectively The fruit juice was placed in a 250mL Erlenmeyer flask, the mouth of the bottle was sealed with 8 layers of gauze, and placed in a constant temperature incubator at 30°C for cultivation until the smell of alcohol was produced. After diluting the fermented pear juice, spread it on the screening medium and cultivate it in a constant temperature incubator at 30°C for 3 days, select the colonies with smooth surface, n...

Embodiment 2

[0040] A kind of brewing method of high γ-aminobutyric acid pear wine of the present invention comprises the following steps:

[0041] a. The composition of the screening medium is: glucose 20g / L, peptone 20g / L, yeast extract powder 10g / L, bromocresol green 0.1g / L, succinic acid 2g / L, glyoxylic acid 2g / L.

[0042]b. Preliminary screening of GABA strains: select pears with high sugar content, strong aroma, and fully mature pears. After removing the core, cut the fruit with skin into 2×3cm small pieces, and use a screw juicer to squeeze the juice; then take 100mL respectively The fruit juice was placed in a 250mL Erlenmeyer flask, the mouth of the bottle was sealed with 8 layers of gauze, and placed in a constant temperature incubator at 28°C for cultivation until the smell of alcohol was produced. After diluting the fermented pear juice, spread it on the screening medium, and cultivate it in a constant temperature incubator at 28°C for 3 days, select the colonies with smooth su...

Embodiment 3

[0051] A kind of brewing method of high γ-aminobutyric acid pear wine of the present invention comprises the following steps:

[0052] a. The composition of the screening medium is: glucose 20g / L, peptone 20g / L, yeast extract powder 10g / L, bromocresol green 0.1g / L, succinic acid 2g / L, glyoxylic acid 2g / L.

[0053] b. Primary screening of GABA strains: select high-sugar content, strong aroma, and fully mature Crown pears, remove the core of the fruit, cut the skin into 2×3cm small pieces, and use a screw juicer to squeeze the juice; then take 100mL respectively The fruit juice was placed in a 250mL Erlenmeyer flask, the mouth of the bottle was sealed with 8 layers of gauze, and placed in a constant temperature incubator at 30°C for cultivation until the smell of alcohol was produced. After diluting the fermented pear juice, spread it on the screening medium and cultivate it in a constant temperature incubator at 30°C for 3 days, select the colonies with smooth surface, neat edg...

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PUM

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Abstract

The invention relates to a preparation method of a high gamma-aminobutyric acid (GABA) pear wine. The preparation method comprises the following steps: firstly, screening GABA brewing yeast from the surface of a pear fruit, wherein the GABA brewing yeast not only has a good capacity of generating alcohol but also has a capacity of generating GABA at a high yield under a micro aerobic condition; after pear juicing, adding the screened GABA brewing yeast, wherein the yeast mainly performs alcohol fermentation under an anaerobic condition, and the pear juice is brewed into a pear wine; and when the alcohol fermentation is almost finished, introducing a small amount of air to perform micro aerobic fermentation, wherein during the micro aerobic fermentation, the yeast generates a lot of GABA to finally brew the GABA pear wine. The GABA has physiological effects of lowering blood pressure, improving liver functions, improving sleeping, enhancing memory, resisting aging, preventing and curing obesity and the like. The brewed pear wine is fulvous or light yellow, and has strong fragrance, pure and soft taste and unique flavor. Because the pear wine is rich in GABA, the healthcare function of the pear wine is significantly enhanced.

Description

technical field [0001] The invention belongs to the technical field of fermentation engineering and relates to a method for brewing pear wine, specifically a method for brewing pear wine containing high-concentration gamma-aminobutyric acid. Background technique [0002] γ-Aminobutyric acid (γ-Aminobutyric Acid, GABA) is a non-protein natural amino acid, which widely exists in plants, animals and microorganisms. It has important physiological functions such as lowering blood pressure, improving liver function, regulating hormone secretion, improving sleep, enhancing memory, anti-aging, and preventing obesity, so it is widely used in health food and medicine. The production of GABA mainly uses glutamic acid or its derivatives (sodium glutamate, or substances rich in glutamic acid, etc.) have to. [0003] Fruit wine is a beverage wine made from fresh fruit as raw material, first squeezed to obtain juice, and then added to Saccharomyces cerevisiae for alcoholic fermentation. ...

Claims

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Application Information

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IPC IPC(8): C12G3/02C12N1/18C12R1/865
CPCC12G3/02
Inventor 赵国群关军锋王维
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY