Abstract
Abstract Peat, a partially decomposed plant material rich in minerals and lignocellulose was tested as a substrate for the growth and production of hydrolytic enzymes viz. cellulase, cellobiase and xylanase in Phanerochaete chrysosporium. Three types of peak extracts such as cold, hot water and autoclaved were prepared and tested. Among them, autoclaved extract supported the maximal growth. The intracellular enzyme activities peaked on the fifth day after inoculation irrespective of the media and enzyme tested. Addition of cellobiose and lactose in the medium induced the production of cellulase, xylanase and to a lesser extent cellobiase. Addition of glucose and sucrose to the media resulted in the suppression of all the extracellular enzymes tested.
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