Method for preparing fermented soybean milk powder through lactobacillus fermentum, prepared fermented soybean milk powder and application

Abstract

The invention specifically discloses a method for preparing fermented soybean milk powder through lactobacillus fermentum, the prepared fermented soybean milk powder and application. The method comprises the following steps that the lactobacillus fermentum CGMCC No.17321 is inoculated in soybean milk for fermentation, and freezing drying is conducted to obtain the fermented soybean milk powder. The method for preparing the fermented soybean milk powder through the lactobacillus fermentum, the prepared fermented soybean milk powder and the application have the advantages that the obtained fermented soybean milk powder can significantly reduce the formation quantity of biofilms of streptococcus mutans, and it is disclosed that the fermented soybean milk powder of lactobacillus fermentum CGMCC No.17321 / lactobacillus fermentum CGMCC No.17321 and lactobacillus plantarum ATCC 14917 (purchased from ATCC) has new application in dental caries resistance; compared with other strains capable of preparing soybean milk powder and other fermentation culture mediums, the obtained fermented soybean milk powder has a more remarkable effect of inhibiting the formation of the biofilms of the streptococcus mutans, and the stability is good.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a preparation method of fermented soybean milk powder. In addition, the present invention also relates to a method for preparing fermented soybean milk powder from Lactobacillus fermentum, and the prepared fermented soybean milk powder and its application. Background technique [0002] Dental caries, commonly known as caries, tooth decay, is a bacterial disease, can be secondary to pulpitis and periodontitis, and even cause alveolar bone and jaw inflammation. If it is not treated in time, the lesion will continue to develop, forming cavities, and eventually the crown will be completely destroyed and disappeared. The final result of its development is tooth loss. Dental caries is characterized by high incidence and wide distribution. The disease is the main common disease of the oral cavity and one of the most common human diseases. The World Health Organization has list...

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Problems solved by technology

[0004] At present, most of the research reports on dental caries treatment focus on controlling or reducing the number of Streptococcus mutans in the oral cavity. However, a healthy oral environment is generally in a state where harmful bacteria and beneficial bacteria reach a balance. Excessive reduction of harmful bacteria will Bring the imbalance of oral flora, and then cause other adverse reactions of the human body

In addition, some clinically used bactericidal drugs against Streptococcus mutans, such as silver ammonium nitrate and other compounds, have strong side effects, and long-term use will stain teeth, so they are not suitable for anterior teeth treatment

The risk of dental caries can also be reduced by reducing the production of Streptococcus mutans biofilm without disrupting the inherent balance of oral flora or causing side effects, but there are relatively few reports in this regard, especially the research related to microbial fermentation products is extremely limited , fermented products that inhibit the biofilm formation of Streptococcus mutans are quite scarce

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