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Received April 12, 2011
Accepted May 27, 2011
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Enhanced production of cellobiose dehydrogenase and β-glucosidase by Phanerochaete chrysosporium

Department of Chemical and Biological Engineering, Korea University, 5, Anam-dong, Sungbuk-gu, Seoul 136-701, Korea 1School of Life Science and Biotechnology, Korea University, 5, Anam-dong, Sungbuk-gu, Seoul 136-701, Korea 2Department of Chemical Engineering, Kwangwoon University, 447-1, Wolgye-dong, Nowon-gu, Seoul 139-701, Korea
kimsw@korea.ac.kr
Korean Journal of Chemical Engineering, January 2012, 29(1), 77-81(5), 10.1007/s11814-011-0144-z
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Abstract

The production of cellobiose dehydrogenase (CDH) and β-glucosidase by Phanerochaete chrysosporium ATCC 32629 was assessed during submerged fermentation. The maximum concentrations of CDH and β-glucosidase were obtained using rice straw as the carbon source. Organic nitrogen sources were more effective in enzyme production than inorganic nitrogen sources. Corn steep liquor (CSL) for CDH production and soy bean meal (SBM) for β-glucosidase production were the most appropriate organic nitrogen sources. Using optimum medium obtained by response surface methodology (RSM), the maximum concentrations of CDH and β-glucosidase achieved in the stirred-tank reactor (STR) were 204 U/L and 140 U/L, respectively. CDH productivity (22.7 U/L·day) was the highest at 9 days.

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