Multifunctional composite probiotic preparation as well as preparation method thereof
A compound probiotic, multi-functional technology, applied in biochemical equipment and methods, microorganism-based methods, functions of food ingredients, etc., can solve the problem of low initial bacterial concentration, long solid-state fermentation time, and high bacterial mortality. problem, to achieve the effect of good resistance to Helicobacter pylori, good physiological function, and increased number of bacteria
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[0082] The preparation method of multifunctional compound probiotic preparation, described method comprises the following steps:
[0083] (1) Lactobacillus plantarum MiuCul-01, Lactobacillus acidophilus MiuLac-01, Lactobacillus casei MiaoTech-01, Lactobacillus rhamnosus MiaoTech-11, Streptococcus thermophilus MiaoPro-01, Bifidobacterium bifidum Miuyo-01, Bifidobacterium lactis Miuyo-11, Bifidobacterium infantis Miuyo-21 and Bifidobacterium breve Miuyo-31 were mixed evenly to form a compound probiotic preparation, which was put into liquid medium for the first anaerobic culture, The resulting culture fluid is centrifuged to obtain the wet thallus of the compound probiotic preparation, which is set aside;
[0084] (2) Mix the wet thallus of the compound probiotic preparation obtained in step (1) with the solid medium, carry out the second anaerobic culture in a sealed state, and carry out low-temperature drying or freeze-drying or vacuum drying after the culture is completed, F...
Embodiment 1
[0089] Isolation, strain characteristics and identification of embodiment 1 bacterial strain
[0090] 1.1 Sample collection:
[0091] The samples of Lactobacillus plantarum were collected and separated from pickles;
[0092] Lactobacillus acidophilus samples were collected and isolated from naturally fermented dairy products;
[0093] Lactobacillus casei samples were collected and isolated from naturally fermented dairy products;
[0094] Lactobacillus rhamnosus samples were isolated from probiotic preparations sold by our company;
[0095] Streptococcus thermophilus was isolated from a sample of yogurt starter sold by our company.
[0096] Bifidobacteria samples were selected from healthy infants who were 3 months to 1 year after birth and had not recently used antibacterial drugs, and samples were collected from their feces for isolation, that is, the isolated strains came from the intestinal tract of healthy infants.
[0097] 1.2 Isolation of strains
[0098] 1.2.1 Iso...
Embodiment 2
[0134] The characteristic of embodiment 2 bacterial strains
[0135] 2.1 Determination of the number of live bacteria in the product
[0136] There are 9 bacterial strains used in the present invention, which are divided into two categories: "Lactobacillus" and "Bifidobacteria". After gradient dilution with sterilized physiological saline to a certain multiple, the Lactobacillus and Bifidobacterium are respectively poured into the MRS agar medium The total number of colonies was counted after culturing at 37°C for 48 hours using the pouring method and the improved MRS agar medium plate pouring method.
[0137] 2.2 Growth at different pH
[0138] Inoculate the above-mentioned 9 strains that have been activated into MRS liquid medium and improved MRS liquid medium respectively, and obtain strain seed liquid after culturing, take 1mL seed liquid and inoculate in 19mL of pH 6.0, 6.5, 7.0 and 7.5 respectively In MRS liquid medium and improved MRS liquid medium, culture anaerobica...
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