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A non-cellulase producing strain of Bacillus subtilis and its potential use in pulp biobleaching

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Abstract

A newly isolated strain of Bacillus subtilis produced β-mannanase when cultivated in a medium containing either locust bean gum, konjac mannan or guar gum as a sole carbon source. In contrast, xylanase was produced only when oat spelt xylan or wheat bran was used as a carbon source. The culture supernatant, which contained both β-mannanase and xylanase, was used to biobleach crude paper pulp to 50% gain in brightness.

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Authors and Affiliations

  1. Applied Biochemistry, Department of Molecular Chemistry, Faculty of Engineering, Hokkaido University, Sapporo, Japan

    Chartchai Khanongnuch, Toshihiko Ooi & Shinichi Kinoshita

  2. Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand

    Saisamorn Lumyong

Authors
  1. Chartchai Khanongnuch
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  2. Saisamorn Lumyong
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  3. Toshihiko Ooi
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  4. Shinichi Kinoshita
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Khanongnuch, C., Lumyong, S., Ooi, T. et al. A non-cellulase producing strain of Bacillus subtilis and its potential use in pulp biobleaching. Biotechnology Letters 21, 61–63 (1999). https://doi.org/10.1023/A:1005418423600

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  • DOI: https://doi.org/10.1023/A:1005418423600

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