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Chemical and ultrastructural studies of lignocellulose biodegradation during Agaricus bisporus cultivation
Author(s) -
Zhang Rui,
Wang Hexiang,
Liu Qinghong,
Ng TziBun
Publication year - 2014
Publication title -
biotechnology and applied biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 70
eISSN - 1470-8744
pISSN - 0885-4513
DOI - 10.1002/bab.1156
Subject(s) - agaricus bisporus , cellulose , lignin , hemicellulose , mushroom , mycelium , chemistry , biodegradation , pleurotus , food science , substrate (aquarium) , botany , organic chemistry , biology , ecology
Abstract During Agaricus bisporus cultivation, lignocellulose degradation is the result of the activity of both the mushroom and microbial communities developed during the composting. To investigate the lignocellulose degradation in detail from the beginning to the end of the process, the functional groups of cellulose, hemicellulose, and lignin have been studied with F ourier transform infrared spectroscopy and the morphological changes of lignocelluloses were elucidated with scanning electron microscopy. The aperture of lignin and cellulose increased to enable the mycelia of A . bisporus to penetrate into the medium and to degrade lignocelluloses in a more direct way. The chemical structure changes implied a preferential use of lignin that could make for better use of cellulose to boost growth of A . bisporus . Changes in chemical structure together with ultrastructural changes induced by the microbial flora during cultivation substrate production by the composting substrate are important in promoting the utilization of lignocelluloses by A . bisporus .