Purification and characterization of .BETA.-agarases from Vibrio sp. AP-2.
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- Aoki Takahiko
- Department of Chemistry of Fishery Resources, Faculty of Bioresources, Mie University
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- Araki Toshiyoshi
- Department of Chemistry of Fishery Resources, Faculty of Bioresources, Mie University
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- Kitamikado Manabu
- Department of Fisheries, Faculty of Agriculture, Kyusyu University
Bibliographic Information
- Other Title
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- <i>Vibrio</i> sp. AP-2の産生するβ-アガラーゼの精製と特性
- Vibrio sp.AP-2の産生するβ-アガラーゼの精製と特性〔英文〕
- Vibrio sp.AP-2 ノ サンセイスル ベータ アガラーゼ ノ セイセ
- Purification and characterization of β-agarases from Vibrio sp. AP-2
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Abstract
β-Agarases were purified from the culture fluid of a marine bacterium, Vibrio sp. AP-2, by am-monium sulfate precipitation, successive column chromatography, and nuclease treatment. The final enzyme preparations appeared to be homogeneous on polyacrylamide gel electrophoresis. The enzymes (agarases-a, -b, and-c) had molecular weight of 34, 000, 20, 000, and 18, 000 daltons, and the pH optimum of 6.5, 5.5, 7.0, respectively, and were stable in a pH region from 4.0 to 9.0, and at temperatures below 45°C. The agarases were β-agarase which degraded agar to yield neoagaro-oligosaccharides. Agarase-a and agarase-c hydrolyzed agar to give neoagarotetraose as the pre-dominant product, agarase-b gave neoagarobiose as the predominant product. The three enzymes did not react with κ-carrageenan.
Journal
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- NIPPON SUISAN GAKKAISHI
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NIPPON SUISAN GAKKAISHI 56 (5), 825-830, 1990
The Japanese Society of Fisheries Science
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Keywords
Details 詳細情報について
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- CRID
- 1390001206412747136
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- NII Article ID
- 130001545036
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- NII Book ID
- AN00193422
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- COI
- 1:CAS:528:DyaK3cXlsVOlu7k%3D
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- ISSN
- 1349998X
- 00215392
- http://id.crossref.org/issn/00215392
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- NDL BIB ID
- 3671230
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed