Lactobacillus casei capable of reducing cholesterol and method for producing probiotic yogurt from same

Abstract

The invention provides Lactobacillus casei J1 capable of reducing cholesterol. According to a technical scheme in the invention, the Lactobacillus casei J1 is separated and screened from Tibetan kefir (also called as kefir grain) cultured in a common household and is preserved in China General Microbiological Culture Collection Center on September 11, 2006, with an accession number of CGMCC No. 1808. The invention also discloses a method for producing probiotic yogurt by using the Lactobacillus casei J1. On the basis of no change of common yoghourt fermentation process, the yoghourt capable of reducing serum cholesterol can be prepared by utilizing the characteristic that the J1 strain produces bile salt hydrolase, and the problem of precipitation of whey of the yoghourt is overcome. The method for producing the probiotic yogurt has the advantages of simple process, a short fermentation period, low cost and applicability to large-scale industrial production.

Description

technical field [0001] The invention relates to a cholesterol-lowering Lactobacillus casei (Lactobacillus casei) J1 and a method for producing probiotic yoghurt. Dry powder starter and common yoghurt dry powder starter are mixed and fermented to produce probiotic yoghurt, which is suitable for cholesterol-lowering probiotics in fermented dairy products. The production of bacterial yogurt, probiotic tablets, and microecological preparations. Background technique [0002] Probiotics refer to a class of microorganisms that improve the microecological balance of specific parts of the host through intestinal colonization and have several other beneficial physiological functions. They control intestinal infection and lower serum cholesterol by improving the ecological balance of intestinal microorganisms. It can improve the utilization of lactose by people with lactose intolerance, and can stimulate specific or non-specific immune response, which has the effect of immune enhanceme...

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Problems solved by technology

Although there is also a patent report about the research on Lactobacillus casei lowering serum cholesterol effect abroad: Lactobacillus casei bd-II stain and used to reduce blood cholesterol (20060127380), but at present, the content of bile salt hydrolyzing enzyme produced by Lactobacillus casei abroad is still unknown. No patent report

Although there is a patent report on "Functional Yogurt Containing Lactobacillus reuteri and Its Preparation Method (200310112715.8)" in China, the domestic application of Lactobacillus casei to the production of probiotic yogurt Have not yet seen relevant literature reports and patent reports

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