Gamma-reanal containing brown fermented milk base material, milk beverage and preparation methods thereof

Abstract

The invention discloses a gamma-reanal containing brown fermented milk base material and a preparation method thereof. The preparation method comprises the steps of: (1) mixing a raw material A uniformly and homogenizing to obtain a material liquid B, wherein the raw material A comprises monosaccharide, sodium glutamate and raw milk, and the material liquid B contains the sodium glutamate accounting for 7-10 g / L and the monosaccharide accounting for 60-150 g / L; (2) sterilizing the material liquid B at 90-95 DEG C for 60-120 min or sterilizing the material liquid B at 115-120 DEG C for 10-20 min; meanwhile, performing Maillard reaction and cooling; (3) grafting a leavening agent for fermentation so as to obtain the gamma-reanal containing brown fermented milk base material, wherein the fermentation time lasts for 72 h to 96 h; the leavening agent is satisfied with the condition that the raw milk is added with 10 g / L sodium glutamate and is grafted with the leavening agent according to a grafting amount of 1*106 cfu / mL, and the yield of the gamma-reanal after 72 hours fermentation is not less than 4 g / L. The preparation method greatly shortens the sterilization time. The brown fermented milk beverage prepared by using the gamma-reanal containing brown fermented milk base material has the advantages of being good in mouth feeling and flavor, containing a plenty of gamma-reanal, adding functionality and health protection property of milk products and making up the situation that the natural gamma-reanal is relatively high in price and is limited to application.

Description

technical field [0001] The invention relates to a brown fermented milk base material containing gamma-aminobutyric acid, a preparation method thereof, and a brown fermented milk beverage and a preparation method thereof. Background technique [0002] γ-aminobutyric acid (GABA for short) is a natural functional non-protein amino acid that is widely found in tea, radish leaves, crustaceans, mammals and other animals and plants. γ-aminobutyric acid in the human body not only acts as an inhibitory neurotransmitter, but exists in high concentrations in the central nervous system, and 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 phy...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the long sterilization time and high equipment occupation in the production of brown milk drinks in the prior art, the high cost of external addition of gamma-aminobutyric acid in food, or the production of gamma-aminobutyric acid When the strain is applied to food, the yield is too low, and even the defect that it cannot be applied to food provides a brown fermented milk base material containing γ-aminobutyric acid and a preparation method thereof, and a γ-aminobutyric acid-containing Sour brown fermented milk beverage and preparation method thereof