Fermentative Production of Poly(β-L-malic acid), a Polyelectrolytic Biopolyester, by Aureobasidium sp.
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概要
- 論文の詳細を見る
Many strains of a black yeast, identified as Aureobasidium sp. , were isolated by a selective medium, which contained mannitol as a main carbon source, and found to produce an extracellular biopolyester from glucose. The biopolyester was recovered as its calcium salt (61g) from culture filtrate (1 liter). The acid hydrolysis and the transmethylation of the polyester proved L-malic acid to be its monomeric repeating unit. The saponification of the polyester, however, gave fumaric and maleic acids in about 20% yield, in addition to the malic acid. ^1H NMR analysis proved the main-chain ester linkage of the polyester to be β-type. The apparent molecular mass was estimated to be distributed between about 6 and 11 kDa in a buffer (pH 6.8) with a high ionic strength (0.2M).
- 社団法人日本農芸化学会の論文
- 1993-04-23
著者
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Nakahara Tadaatsu
Institute of Applied Biochemistry, University of Tsukuba
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TABUCHI Takeshi
Institute of Applied Biochemistry, University of Tsukuba
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Tabuchi T
Institute Of Bioscience And Biotechnology Aomori University
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Tabuchi Takeshi
Institute Of Applied Biochemistry The University Of Tsukuba
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Nagata Naoki
First Department Of Surgery University Of Occupational And Environmental Health
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Nagata Naoki
Institute Of Applied Biochemistry University Of Tsukuba
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Nakahara Tadaatsu
Institute Of Applied Biochemistry University Of Tsukuba
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Nakahara Tadaatsu
Institute Of Applied Biochemistry The University Of Tsukuba
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