Acetobacter xylinum Mutant with High Cellulose Productivity and an Ordered Structure
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概要
- 論文の詳細を見る
Acetobacter xylinum subsp. sucrofermentans BPR2001,a cellulose-producing bacterium, that was newly isolated from a natural source, produced large amounts of the water-soluble polysaccharide, acetan. UDP-glucose is known to be the direct precursor in the synthetic pathways of both cellulose and acetan. We attempted to breed mutant strains and succeeded in obtaining one, BPR3001A, which produced 65% more bacterial cellulose and accumulated 83% less acetan than the parent strain, BPR2001. The cellulose formed was found to be structurally ordered, with higher degrees of polymerization and crystallinity and larger crystallite size than those produced by BPR2001 and other conventional strains. Furthermore, a processed dry sheet of this cellulose exhibited a higher Young's modulus than that of the wild strain. The ordered structure of the cellulose obtained was probably due to the decreased amount of acetan which may reflect the ribbon assembly of cellulose fibrils without prevention of hydrogen bonding between microfibrils.
- 社団法人日本農芸化学会の論文
- 1998-07-23
著者
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Watanabe K
Faculty Of Pharmaceutical Science School Of Medicine Fukuoka University
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MORINAGA Yasushi
Institute of Life Sciences, Ajinomoto Co. , Inc.
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Ishikawa A
Department Of Bioscience Fukui Prefectural University
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Ishikawa Atsushi
Bio-polymer Research Co. Ltd. :(present Address)nakano Central Institute Nakano Vinegar Co. Ltd.
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YOSHINAGA FUMIHIRO
Bio-Polymer Research Co. Ltd.,
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Tsuchida Takayasu
Bio-Polymer Research Co.Ltd., KSP
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Takemura Hiroshi
(present Address)bio-polymer Research Co. Ltd.
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Takemura Hiroshi
Bio-polymer Research Co. Ltd.:(present Address)nakano Central Institute Nakano Vinegar Co. Ltd.
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Watanabe Katsunori
Department Of Bioresources Chemistry Faculty Of Horticulture Chiba University
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WATANABE Kunihiko
Bio-Polymer Research Co., Ltd.
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TABUCHI Mari
Bio-Polymer Research Co., Ltd.
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MORINAGA Yasushi
Bio-Polymer Research Co., Ltd.
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Watanabe K
Department Of Agriculture Tokyo University Of Agriculture
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Tabuchi Mitsuaki
Yonezawa Women's College Of Yamagata Prefecture
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Watanabe K
Research Institute For Food Science Kyoto University:(present Address)department Of Agricultural Che
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Watanabe K
Department Of Applied Biological Sciences Faculty Of Agriculture Saga University
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Watanabe K
Marine Biotechnol. Inst. Iwate Jpn
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Morinaga Y
Institute Of Life Sciences Ajinomoto Co. Inc.
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Yoshinaga F
Bio-polymer Research Co. Ltd.
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Yoshinaga Fumihiro
Bio-polymer Research Co. Ltd.
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Tsuchida T
Bio-polymer Research Co. Ltd.
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Tagami Haruko
Nakano Central Research Institute Nakano Vinegar Co. Ltd.
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Tsuchida Takayasu
Central Research Laboratories Of Ajinomoto Co. Inc.
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Tsuchida Takayasu
Bio-polymer Research Co. Ltd.
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Tsuchida T
Bio-polymer Res. Co. Ltd.
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Watanabe Kunihiko
Bio-polymer Research Co. Ltd.
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