Purification and some properties of a novel chitosanase from Bacillus subtilis KH1.

  title={Purification and some properties of a novel chitosanase from Bacillus subtilis KH1.},
  author={Crispinus A. Omumasaba and Naoto Yoshida and Yoshiaki Niihari-gun Sekiguchi and Kunichi Kariya and Kihachiro Ogawa},
  journal={The Journal of general and applied microbiology},
  volume={46 1},
One of at least two chitosanases secreted in the culture filtrate of Bacillus subtilis KH1 was purified by two sequential DEAE Sepharose CL-6B chromatographies, followed by Sephacryl S-100 HR gel chromatography. The purified enzyme was homogenous as judged by SDS-PAGE. It showed an estimated molecular weight and pI of 28,000 and 8.3, respectively. The enzyme drastically reduced the viscosity of highly deacetylated chitosan substrates, with the subsequent formation of chitooligosaccharides… Expand
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