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Int. J. Mol. Sci. 2011, 12(2), 1187-1195; doi:10.3390/ijms12021187

N-Acetyl Glucosamine Obtained from Chitin by Chitin Degrading Factors in Chitinbacter tainanesis

1
Environment and Biotechnology Department, Refining and Manufacturing Research Institute, CPC Corporation, Taiwan, Chia-yi, Taiwan
2
Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Kweishan, Taoyuan, Taiwan
3
Department of Chemical Engineering, Mingchi University of Technology, Taishan, New Taipei, Taiwan
4
Graduate School of Biochemical Engineering, Mingchi University of Technology, Taishan, New Taipei, Taiwan
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 3 December 2010 / Revised: 15 February 2011 / Accepted: 15 February 2011 / Published: 17 February 2011
(This article belongs to the Special Issue Chitins)
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Abstract

A novel chitin-degrading aerobe, Chitinibacter tainanensis, was isolated from a soil sample from southern Taiwan, and was proved to produce N-acetyl glucosamine (NAG). Chitin degrading factors (CDFs) were proposed to be the critical factors to degrade chitin in this work. When C. tainanensis was incubated with chitin, CDFs were induced and chitin was converted to NAG. CDFs were found to be located on the surface of C. tainanensis. N-Acetylglucosaminidase (NAGase) and endochitinase activities were found in the debris, and the activity of NAGase was much higher than that of endochitinase. The optimum pH of the enzymatic activity was about 7.0, while that of NAG production by the debris was 5.3. These results suggested that some factors in the debris, in addition to NAGase and endochitinase, were crucial for chitin degradation.
Keywords: CDFs; Chitinibacter tainanensis; chitin; NAG; fermentation CDFs; Chitinibacter tainanensis; chitin; NAG; fermentation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Chen, J.-K.; Shen, C.-R.; Yeh, C.-H.; Fang, B.-S.; Huang, T.-L.; Liu, C.-L. N-Acetyl Glucosamine Obtained from Chitin by Chitin Degrading Factors in Chitinbacter tainanesis. Int. J. Mol. Sci. 2011, 12, 1187-1195.

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