Gamma-amino butyric acid-containing fermentation milk and manufacturing method thereof

Abstract

The invention discloses gamma-amino butyric acid (GABA)-containing fermentation milk and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) mixing raw materials uniformly and then homogenizing, wherein the raw material comprises 0.3%-1% by mass of sodium glutamate and the balance being raw material milk; (2) sterilizing the raw material and cooling; and (3) inoculating a starter for fermentation, wherein the fermentation time is 12-72 h, and then cooling to get the finished product. The bacterial classification of the starter satisfies the following conditions: adding 1% of sodium glutamate into the raw material milk, wherein the percentage means the sodium glutamate accounts for the amount of the raw material milk and the sodium glutamate, inoculating zymocyte, wherein the total bacteria number is 1*10<6>cfu / mL, and detecting the content of GABA after fermenting for 72 h, wherein the mass percent of the GABA accounting for the amount of fermentation milk is no less than 0.2%. The gamma-amino butyric acid-containing fermentation milk obtained by the method is rich in natural GABA, and good in product taste, flavor and texture.

Description

technical field [0001] The invention relates to fermented milk containing gamma-aminobutyric acid and a preparation method thereof. Background technique [0002] γ-aminobutyric acid (γ-amino butyric acid, GABA), is a natural functional non-protein amino acid, widely present in tea, radish leaves, crustaceans, mammals and other animals and plants. γ-aminobutyric acid in the human body not only exists in the central nervous system at high concentrations as an inhibitory neurotransmitter, but also exists in peripheral organs such as the intestinal tract. γ-aminobutyric acid is a physiologically active ingredient that can activate glucose metabolism in the brain, reduce blood ammonia, anticonvulsant, lower blood pressure, enhance brain vitality, increase neurotrophy, enhance long-term memory, promote growth hormone secretion, activate kidney function, Liver function, improve important physiological functions such as menopausal syndrome. γ-aminobutyric acid has good prospects f...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the high cost of external addition of gamma-aminobutyric acid in food in the prior art, or the low yield or low yield of gamma-aminobutyric acid-producing strains that can be applied to food. The invention provides a fermented milk containing gamma-aminobutyric acid, which is naturally rich in gamma-aminobutyric acid and has good taste, flavor and texture, and its production method.

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