Chiang Mai Journal of Science, Faculty of Science, Chiang Mai University

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Characterization of Xylanase and Cellulase from Lentinus polychrous Lev. LP-PT-1

Paper Type	Contributed Paper
Title	Characterization of Xylanase and Cellulase from Lentinus polychrous Lev. LP-PT-1
Author	Panadda Petchluan*, Charida Pukahuta and Nareerat Chaikong
Email	jingjomsu@yahoo.com
Abstract: Biotechnological processing uses enzymes and microorganisms to make a wide range of valuable products in many industrial sectors. This study investigated the culture conditions of the production of two enzymes, xylanase and cellulase, by Lentinus polychrous Lev. LP-PT-1, under solid state fermentation, using economical rice straw as a substrate. The optimum temperatures and pH of enzyme activities and stabilities were examined and it was shown that the optimal temperature was 35°C. The 75% and 80% moisture levels showed significantly higher cellulase production than other treatments (p < 0.05) and also significantly higher xylanase production than 50% and 55% moisture levels (p < 0.05). The inoculum level at 0.5 cm per disk for the four disks in 4g substrate culture was found to be the optimum for the production of xylanase and cellulase by L. polychrous Lev. LP-PT-1. The incubating temperature is one of the most significant factors that strongly affects the production of xylanase and cellulase. The relatively good thermo-stability of xylanase and cellulase was maintained at a high temperature of 60°C with 89% and 81% of the remaining activity. The xylanase appeared to be stable over a broad pH range of 4.0–7.0. The cellulase was stable at pH 4.0-5.0 with 94% remaining activity. High cellulase activity was achieved at temperatures between 30 and 60°C. The xylanase activity increased with high temperatures to 60°C. The optimum pH for cellulase and xylanase activity was found in the range of pH 4.0-6.0. The findings revealed that the high thermo-stability of xylanase and cellulase from L. polychrous Lev.LP-PT-1 was potentially beneficial in industrial biotechnological applications
Start & End Page	1007 - 1019
Received Date	2013-03-01
Revised Date
Accepted Date	2013-08-20
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Keyword	xylanase, cellulase, Lentinus polychrous
Volume	Vol.41 No.5/1 (OCTOBER 2014)
DOI
Citation	Petchluan* P., Pukahuta C. and Chaikong N., Characterization of Xylanase and Cellulase from Lentinus polychrous Lev. LP-PT-1, Chiang Mai Journal of Science, 2014; 41(5/1): 1007-1019.
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Characterization of Xylanase and Cellulase from Lentinus polychrous Lev. LP-PT-1

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