The application belongs to the technical field of fermented dairy products. A weak post-acid fermented milk containing sleep-regulating functional components and a preparation method,
starter and application thereof based on temperature-adjusted
fermentation are disclosed. The weak post-acid
starter is prepared by using
Streptococcus thermophilus complex, and the fermented milk with GABA content of 34 mg / 100 g or more is prepared by two-stage temperature-adjusted
fermentation, which can effectively improve the GABA synthesis efficiency. In the application,
Streptococcus thermophilus for producing GABA is used to replace
Lactobacillus bulgaricus in the traditional
starter, so that the post-acid problem is avoided from the source of the strain, and the efficient accumulation of GABA is realized in a short time through the temperature-adjusted
fermentation process. The preparation process is simple, the obtained fermented milk has weak post-acid and good
flavor, and is suitable for industrial production.