Purification and Some Properties of a Levanase from Streptomyces sp. No. 7-3(Biological Chemistry)
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概要
- 論文の詳細を見る
Several microorganisms that produced levan-degrading enzyme were isolated from soil and the enzymes could be classified into several types according to the products from levan. Among these enzymes a levanase from Streptomyces sp. No. 7-3 was purified to homogeneity, shown by disc-electrophoresis. The molecular weight of the enzyme was 54,000 by SDS-polyacrylamide gel electrophoresis, and 57,000 by gel filtration. The isoelectric point of the enzyme was pH 4.7. The enzyme was most active at pH 6.5 and at 40℃, and stable up to 40℃ and from pH 5.5 to pH 8.5. The enzyme hydrolyzed levan to produce levanbiose predominantly. Fructose (F, 3%) and levantriose (F3, 17%) were also produced in addition to levanbiose (F2, 80%).
- 社団法人日本農芸化学会の論文
- 1990-09-23
著者
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Murakami Hiromi
Osaka Municipal Technical Res. Inst.
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MIZUTANI Kenji
Maruzen Pharmaceutical Co., Ltd
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Mizutani K
Maruzen Pharmaceuticals Co.
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KURAMOTO Takashi
Maruzen Kasei Co., Ltd.
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TAMURA Yukiyoshi
Maruzen Pharmaceuticals Co.
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KITAHATA Sumio
Osaka Municipal Technical Research Institute
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KISO TARO
Osaka Municipal Technical Research Institute
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Murakami H
Laboratory Of Cellular Regulation Technology Graduate School Of Genetic Resources Technology Kyushu
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NAKANO HIROFUMI
Osaka Municipal Technical Research Institute, and Yashiro Co, Ltd.,
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Yoshiyuki Tamura
Laboratory Of Nutrition And Food Science Hagoromo University Of International Studies
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Kitahata S
Department Of Bioscience And Biotecnology Shinshu University
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Kiso Taro
Department Of Biochemistry Osaka Municipal Technical Research Institute
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Murakami H
Osaka Municipal Technical Res. Inst.
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MUROI Hisae
Maruzen Kasei Co., Ltd.
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Muroi Hisae
Maruzen Kasei Co. Ltd.
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Nakano Hirofumi
Osaka Municipal Technical Research Institute
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Mizutani Kimihiko
Division Of Applied Life Science Graduate School Of Agriculture Kyoto University
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