Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review
The number of possible applications of microbial xylanases in the pulp and paper industry is gradually increasing and several are approaching commercial use. However, the properties of commercial xylanases make them unsuitable for the real process of pulp bleaching. This industry needs xylanases whi...
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th-cmuir.6653943832-6122014-08-29T08:50:28Z Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review Techapun C. Poosaran N. Watanabe M. Sasaki K. The number of possible applications of microbial xylanases in the pulp and paper industry is gradually increasing and several are approaching commercial use. However, the properties of commercial xylanases make them unsuitable for the real process of pulp bleaching. This industry needs xylanases which are free of cellulase, function for a long time, at least 3 h, at temperatures over 70°C and which are active at a pH higher than 8.0. Newly isolated microbes, which produce cellulase-free xylanases and are easily grown using a low-cost agricultural waste substrate were investigated. The properties of cellulase-free xylanases from Streptomyces sp. Ab106 produced from a simplified low-cost substrate of cane bagasse matched the following industrial requirements: active and stable at temperatures of 50-80°C, active at alkaline pH (pH 7-9), half-life at 70°C, pH 9.0 of 5 h. © 2003 Elsevier Science Ltd. All rights reserved. 2014-08-29T08:50:28Z 2014-08-29T08:50:28Z 2003 Review 00329592 10.1016/S0032-9592(02)00331-X PBCHE http://www.scopus.com/inward/record.url?eid=2-s2.0-0037672692&partnerID=40&md5=c48179d19ecad8c0c3a2e5785339cd8b http://cmuir.cmu.ac.th/handle/6653943832/612 English |
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The number of possible applications of microbial xylanases in the pulp and paper industry is gradually increasing and several are approaching commercial use. However, the properties of commercial xylanases make them unsuitable for the real process of pulp bleaching. This industry needs xylanases which are free of cellulase, function for a long time, at least 3 h, at temperatures over 70°C and which are active at a pH higher than 8.0. Newly isolated microbes, which produce cellulase-free xylanases and are easily grown using a low-cost agricultural waste substrate were investigated. The properties of cellulase-free xylanases from Streptomyces sp. Ab106 produced from a simplified low-cost substrate of cane bagasse matched the following industrial requirements: active and stable at temperatures of 50-80°C, active at alkaline pH (pH 7-9), half-life at 70°C, pH 9.0 of 5 h. © 2003 Elsevier Science Ltd. All rights reserved. |
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Review |
author |
Techapun C. Poosaran N. Watanabe M. Sasaki K. |
spellingShingle |
Techapun C. Poosaran N. Watanabe M. Sasaki K. Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review |
author_facet |
Techapun C. Poosaran N. Watanabe M. Sasaki K. |
author_sort |
Techapun C. |
title |
Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review |
title_short |
Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review |
title_full |
Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review |
title_fullStr |
Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review |
title_full_unstemmed |
Thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: A review |
title_sort |
thermostable and alkaline-tolerant microbial cellulase-free xylanases produced from agricultural wastes and the properties required for use in pulp bleaching bioprocesses: a review |
publishDate |
2014 |
url |
http://www.scopus.com/inward/record.url?eid=2-s2.0-0037672692&partnerID=40&md5=c48179d19ecad8c0c3a2e5785339cd8b http://cmuir.cmu.ac.th/handle/6653943832/612 |
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