• Title/Summary/Keyword: Bacteroids JY-6

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Induction of ${\beta}$-Glucosidase and ${\alpha}$-Rhammosidase of Bacteroides JY-6 by Flavonoid Glycosides (플라보노이드배당체에 의한 Bacteroides JY-6의 ${\beta}$-글루코시다제 및 ${\alpha}$-람노시다제의 유도)

  • Jang, Il-Sung;Park, Jong-Baek;Kim, Dong-Hyun
    • YAKHAK HOEJI
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    • v.40 no.3
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    • pp.335-339
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    • 1996

  • Optimal medium for growth and glycosidases production of Bacteroides JY-6, an human intestinal bacterium, was general anaerobic medium or tryptic soy broth containing sod ium thioglycolate and ascorbic acid. By cocultivation of Staphylococcus R-48, Bacteroides JY-6 could be cultured in LB broth unable to culture JY-6. Heated Staphylococcus R-48 was also the inducer of the production of Bacteroides JY-6 glycosidases. These glycosidases were induced well by natural flavonoid glycosides, such as poncirin, naringin and rutin, but were not by synthetic substrates, p-nitrophenyl ${\beta$-D-glucopyranoside and p-nitrophenyl ${\alpha}$-L-rhanmopyranoside.

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