Abstract: An antihypertensive peptide probiotic goat milk powder and a preparation method thereof are provided. Goat milk is used as a raw material, the goat milk is sterilized and then cooled, and the screened probiotic bacteria for fermenting goat milk to produce antihypertensive peptides, namely Lacticaseibacillus rhamnosus KD5 (which is preserved in CCTCC on Sep. 7, 2023, with a preservation number of CCTCC NO: M20231641), is added and stirred evenly, and then fermented at a constant temperature. After the fermentation is completed, probiotic fermented goat milk containing antihypertensive peptides is obtained. After mixing the probiotic fermented goat milk evenly with or without nutritional fortifiers for middle-aged and elderly people, it is subjected to vacuum low-temperature spray-drying to obtain antihypertensive peptide probiotic goat milk powder, which has a high ACE inhibition rate and can be used to assist consumers in lowering blood pressure.

Abstract: A sleep-aiding probiotic goat milk powder and a preparation method thereof are provided. Goat milk is used as the raw material, and the goat milk is sterilized and cooled, then inoculated with Limosilactobacillus fermentum KD6, which produces the sleep-aiding functional factor ?-aminobutyric acid. The strain was deposited in the China Center for Type Culture Collection (CCTCC) on Sep. 7, 2023, with the deposit number CCTCC NO: M20231642. After being stirred evenly, the mixture is fermented at a constant temperature without the need to add precursors of ?-aminobutyric acid such as glutamic acid or sodium glutamate. Upon completion of fermentation, probiotic fermented goat milk containing ?-aminobutyric acid is obtained, and is then subjected to vacuum low-temperature spray drying to obtain the functional sleep-aiding probiotic goat milk powder.

Abstract: An antihypertensive peptide probiotic goat milk powder and a preparation method thereof are provided. Goat milk is used as a raw material, the goat milk is sterilized and then cooled, and the screened probiotic bacteria for fermenting goat milk to produce antihypertensive peptides, namely Lacticaseibacillus rhamnosus KD5 (which is preserved in CCTCC on Sep. 7, 2023, with a preservation number of CCTCC NO: M20231641), is added and stirred evenly, and then fermented at a constant temperature. After the fermentation is completed, probiotic fermented goat milk containing antihypertensive peptides is obtained. After mixing the probiotic fermented goat milk evenly with or without nutritional fortifiers for middle-aged and elderly people, it is subjected to vacuum low-temperature spray-drying to obtain antihypertensive peptide probiotic goat milk powder, which has a high ACE inhibition rate and can be used to assist consumers in lowering blood pressure.

Abstract: A sleep-aiding probiotic goat milk powder and a preparation method thereof are provided. Goat milk is used as the raw material, and the goat milk is sterilized and cooled, then inoculated with Limosilactobacillus fermentum KD6, which produces the sleep-aiding functional factor ?-aminobutyric acid. The strain was deposited in the China Center for Type Culture Collection (CCTCC) on Sep. 7, 2023, with the deposit number CCTCC NO: M20231642. After being stirred evenly, the mixture is fermented at a constant temperature without the need to add precursors of ?-aminobutyric acid such as glutamic acid or sodium glutamate. Upon completion of fermentation, probiotic fermented goat milk containing ?-aminobutyric acid is obtained, and is then subjected to vacuum low-temperature spray drying to obtain the functional sleep-aiding probiotic goat milk powder.

Abstract: A strain of selenium-enriched Lactiplantibacillus plantarum KD-2 and applications in fermented goat milk and goat milk powder are provided in the present disclosure. The strain is preserved in China Center for Type Culture Collection on Apr. 13, 2023, with a deposit number of CCTCC NO: M2023478. The Lactiplantibacillus plantarum KD-2 is capable of reducing sodium selenite under a condition of buffer solution to prepare nano-selenium, which does not need to be carried out in a culture medium. The Lactiplantibacillus plantarum KD-2 is used to prepare selenium-enriched probiotic fermented goat milk, selenium-enriched probiotics and nano-selenium, and the selenium-enriched probiotics and nano-selenium are applied to goat milk powder.

Abstract: Disclosed are a strain of Lactobacillus helveticus capable of removing multiple heavy metals and an application thereof in milk powder, where the strain is Lactobacillus helveticus KD-3, which is deposited in the China Center for Type Culture Collection on Apr. 6, 2023, with a deposit number of CCTCC NO: M2023479. The Lactobacillus helveticus KD-3 has a cadmium resistant gene czcD, a chromium resistant gene chrA and a lead resistant gene pbrT, and is capable of tolerating single and compound heavy metals (cadmium, chromium and lead). The Lactobacillus helveticus KD-3 of the present disclosure is used to prepare lyophilized bacterial powder.

Abstract: Disclosed are a strain of Lactobacillus helveticus capable of removing multiple heavy metals and an application thereof in milk powder, where the strain is Lactobacillus helveticus KD-3, which is deposited in the China Center for Type Culture Collection on Apr. 6, 2023, with a deposit number of CCTCC NO: M2023479. The Lactobacillus helveticus KD-3 has a cadmium resistant gene czcD, a chromium resistant gene chrA and a lead resistant gene pbrT, and is capable of tolerating single and compound heavy metals (cadmium, chromium and lead). The Lactobacillus helveticus KD-3 of the present disclosure is used to prepare lyophilized bacterial powder.

Abstract: A strain of selenium-enriched Lactiplantibacillus plantarum KD-2 and applications in fermented goat milk and goat milk powder are provided in the present disclosure. The strain is preserved in China Center for Type Culture Collection on Apr. 13, 2023, with a deposit number of CCTCC NO: M2023478. The Lactiplantibacillus plantarum KD-2 is capable of reducing sodium selenite under a condition of buffer solution to prepare nano-selenium, which does not need to be carried out in a culture medium. The Lactiplantibacillus plantarum KD-2 is used to prepare selenium-enriched probiotic fermented goat milk, selenium-enriched probiotics and nano-selenium, and the selenium-enriched probiotics and nano-selenium are applied to goat milk powder.