Selection of Thermophilic Xylanase Producing Mold

Authors

  • Aucharida Svarachorn Dept. of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok 10500, Thailand.
  • Vichien Kitpreechavanich Dept. of Microbiology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
  • Napha Lotong

Abstract

A total of 238 mold cultures capable in utilizing xylan as sole source of carbon were isolated from decomposed lignocellulosic materials. Based on the ability to produce high xylanase activity at 45 oC, 65 isolates were selected. All cultures produced enzymes which hydrolyzed xylan to xylose and xylo-oligosaccharides. The most efficient strain, designated No. 4-45-1F produced as high as enzyme 36.6 units/ml. Regarding to the screening procedures, it was found that activity of the enzyme produced by the cultures was not quantitatively related to size of the clear zones which was developed by flooding the xylan agar plate with iodine solution. All the selected cultures belong to the genus Aspergillus. The best strain was identified as Aspergillus fumigutus Fresenius.

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Published

1988-12-30

How to Cite

Aucharida Svarachorn, Vichien Kitpreechavanich, and Napha Lotong. 1988. “Selection of Thermophilic Xylanase Producing Mold”. Agriculture and Natural Resources 22 (4). Bangkok, Thailand:294-302. https://li01.tci-thaijo.org/index.php/anres/article/view/242547.

Issue

Vol. 22 No. 4 (1988): October-December

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.