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Hypocholesterolemic action of chitosans with different viscosity in rats

• Michihiro Sugano, Shuji Watanabe, Akihiro Kishi, Masato Izume, Akira Ohtakara
• Lipids
• 1988

The relationship between hypocholesterolemic efficacy and average molecular weight of chitosan was studied in rats fed a cholesterol-enriched (0.5%) diet. Several chitosan preparations with a… (More)

Chitosanase from Streptomyces griseus.

• Akira Ohtakara
• Methods in enzymology
• 1988

NMR spectra of partially deacetylated chitotrisaccharides.

• Tamo Fukamizo, Akira Ohtakara, Masaru Mitsutomi, S. Goto
• Agricultural and biological chemistry
• 1991

ucts contained a mixture of partially deacetylated chitooligosaccharides consisting of GlcNAc and GlcN.1'2* The structures of the partially deacetylated chito-oligosaccharides have been identified by… (More)

Action pattern of Aeromonas hydrophila chitinase on partially N-acetylated chitosan.

• Masaru Mitsutomi, Akira Ohtakara, Tamo Fukamizo, S. Goto
• Agricultural and biological chemistry
• 1990

Oligosaccharides from the digestion of 34% N-acetylated chitosan by Aeromonas hydrophila chitinase were separated by CM-Sephadex C-25 column chromatography. Sugar compositions and the sequences of… (More)

Evaluation of toxicity of river sediments by in vitro enzyme inhibition.

• M. Tabata, K. Ozawa, Akira Ohtakara, Hiroshi Nakabayashi, S. Suzuki
• Bulletin of environmental contamination and…
• 1990

Preparation of Chitooligosaccharide-alditols by Hydrogenation with a Ruthenium Catalyst.

• Shin'ichi Nagae, Masato Izume, Shigeo Nishimura, Hirokazu Kawagishi, Akira Ohtakara
• Bioscience, biotechnology, and biochemistry
• 1992

Action pattern of Bacillus sp. no. 7-M chitosanase on partially N-acetylated chitosan.

• Masato Izume, Shinji Nagae, Hirokazu Kawagishi, Masaru Mitsutomi, Akira Ohtakara
• Bioscience, biotechnology, and biochemistry
• 1992

The hydrolyzate of partially N-acetylated chitosan by Bacillus sp. No. 7-M chitosanase was separated by gel filtration on Bio-Gel P-2. Sugar compositions and sequences of the oligosaccharides were… (More)

Structure-activity relationships in the induction of single-strand breakage in plasmid pBR322 DNA by amino sugars and derivatives.

• Nobuhiro Kashige, T. Yamaguchi, +4 authors K Watanabe
• Carbohydrate research
• 1994

Structure-activity relationships in the induction of strand breakage in plasmid pBR322 DNA by amino sugars and their derivatives were investigated using agarose gel electrophoresis. The coexistence… (More)

Action pattern of Streptomyces griseus chitinase on partially N-acetylated chitosan.

• Akira Ohtakara, Hisayuki Matsunaga, Masaru Mitsutomi
• Agricultural and biological chemistry
• 1990

Oligosaccharides produced during the course of the hydrolysis of 25% N-acetylated chitosan by Streptomyces griseus chitinase were fractionated by CM-Sephadex C-25 and Toyopearl HW-40F column… (More)

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