한국식품영양학회지 (The Korean Journal of Food And Nutrition)
- 제10권3호
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- Pages.344-349
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- 1997
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- 1225-4339(pISSN)
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- 2287-4992(eISSN)
Bacillus sp. DSNC 101에 의한 Xylanase 생산
Production of Xylanase by Bacillus sp. DSNC 101
초록
Bacillus sp. DSNC 101은 탄소원으로 2.0% oat spelts xylan, 질소원으로 2.0% yeast extract, 그리고 인산염으로 0.4% K2HPO4를 함유한 pH 8.0의 xylanase 생산 배지에서 4
A strain of Bacillus sp. DSNC 101, isolated from soil, produced up to 305.0 units/ml of xylanase when grown on te medium containing 2.0% xylan, 2.0% yeast extract and 0.4% K2HPO4. The strain produced xylanase in the presence of xylan, soluble starch, rice straw, Avicel, maltose, and lactose as a sole carbon source, but the enzyme was not synthesized in the presence of xylose, glucose or arabinose. The crude xylanase preparation did not show hydrolytic activity towards cellulosic substrates and PNPX, a chromogenic substrate for