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Detection and isolation of the typical gut indigenous bacteria from ddY mice fed a casein-beef tallow-based or egg yolk-based diet.
Journal of Food Biochemistry ( IF 1.662 ) Pub Date : 2020-05-27 , DOI: 10.1111/jfbc.13246
Mayu Fukunaga,Takashi Kuda,Yumeng Xia,Saori Nakamura,Hajime Takahashi,Bon Kimura

The effects of whole egg on the cecal microbiome of ddY mice has been reported. To investigate the existence of susceptible indigenous bacteria (SIB) to egg yolks (EY), mice were fed a diet containing either 20% (w/w) milk casein and 17% beef tallow (CT) or 12% milk casein and 27% EY for 14 days, and then, the cecal microbiome was analyzed by 16S rRNA (V4) amplicon sequencing. To isolate the typical species in each diet group, culture‐dependent viable bacterial counts were determined on Blood Liver (BL) and Gifu Anaerobic Medium (GAM) agar plates. The amplicon sequencing analysis revealed typical CT‐SIB, such as Lachnospiraceae ‐ like bacteria, and EY‐SIB, such as Allobaculum ‐, Lactobacillus murinus ‐, and Bacteroides vulgatus ‐like bacteria. Two of the detected SIB species, L. murinus‐ and B. vulgatus‐ like bacteria, were successfully isolated from the BL and GAM agar plates and defined using a 16S rDNA BLAST search.
更新日期:2020-05-27

 

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