베타 글루쿠로니다제나 베타 글루코시다제를 생산하는 호알칼리성 장내미생물의 검색

Detection of geta-glucuronidase and beta-glucosidase producing alkalotolerant intestinal bacteria

Approximately 1% of intestinal bacteria of human and rats was alkalotolerant. Among these bacteria of human, bacteria producing beta-glucosidase, beta-glucuronidase and sulfotransferase were 40%, 4% and 0%, respectively. Among alkalotolerant intestinal bacteria of rats, bacteria producing, these enzymes were 70%, 8% and 0%, respectively. beta-Glucosidase and beta-glucuronidase of alkalotolerant intestinal bacteria of human and rat were induced by the medium of high pH: these enzymes activities were increased by elevating pH of the medium, but the growths were not changed. The enzyme activities at the medium of pH 7 were about ten-fold higher than those at the medium of pH 6.