Cellulase biocatalysis: key influencing factors and mode of action

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• 作者：Sharifah Bee Abd Hamid ; Mohammed Moinul Islam ; Rasel Das
• 关键词：Cellulose ; Structures ; Cellulases ; Endoglucanase ; Exoglucanase ; Factors controlling cellulase–cellulose interactions
• 刊名：Cellulose
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：22
• 期：4
• 页码：2157-2182
• 全文大小：5,569 KB
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• 作者单位：Sharifah Bee Abd Hamid (1)
  Mohammed Moinul Islam (2)
  Rasel Das (1)
  
  1. Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya (UM), 50603, Kuala Lumpur, Malaysia
  2. Department of Biochemistry and Molecular Biology, University of Chittagong, 4331, Chittagong, Bangladesh
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Bioorganic Chemistry
  Physical Chemistry
  Organic Chemistry
  Polymer Sciences
  
• 出版者：Springer Netherlands
• ISSN：1572-882X

文摘

Commercial interests have been escalating worldwide on cellulase enzymes, since it has enormous potentiality to process most abundant and eco-friendly celluloses and convert them into the renewable and sustainable energy, chemicals, fuels and materials. However, overcoming the cellulose recalcitrance and understanding accurate cellulase catalytic activities have been remaining as major technological challenges. Here we reviewed cellulose hierarchy as a primary focus for cellulase actions and highlighted open questions related to endo- and exo-type cellulases. Special importance has been paid to critically evaluate research efforts on enzyme–substrate interactions, processivity, synergism and mechanistic paradigm for cellulose depolymerizations. These understandings pave the way for enzyme based cellulose bioprocessing and further gains of fundamental science and improved methods for cellulase engineering. We hope the article is potentially important for the biologists, polymer specialists, industrialists and most of the scientists active in cellulose science and technology.