Welcome to Chemistry and Industry of Forest Products,

›› 2005, Vol. 25 ›› Issue (3): 125-130.

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ADVANCES IN STUDIES ON MECHANISM OF CELLULOSE DEGRADATION BY ENZYMIC HYDROLYSIS AND OXIDATION

WANG Xi-guo, YANG Qian, YAN Hong   

  1. Department of Life Science and Engineering , Harbin Institute of Technology, Harbin 150001, China
  • Received:2004-04-20 Revised:1900-01-01 Online:2005-09-30 Published:2005-09-30

Abstract: The development and application of cellulose is limited because the mechanism of cellulose bio-degradation has not yet been clearly understood. Since hypothesis of C1—Cx was suggested, other theories of degradation were suggested to modify the former. It is obvious that enzymic hydrolysis mechanism of cellulose alone could not explain degradation of natural cellulose completely. In this article, representative enzymatic synergisms, hypothesis of cellobiohydrolase(CBH) synergism, HO· radical oxidation and cellobioes dehydrogenase have been mainly introduced. The pathway of cellulose degradation could be better understood through combination of hydrolysis mechanism and oxidation mechanism.

Key words: cellulose, cellulase, hydrolysis, cellobiose dehydrogenase

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