{"title":"Enzymology of ligno-cellulose degradation by Pleurotus sajor-caju during growth on paper-mill sludge","authors":"K. Kannan , G. Oblisami, B.G. Loganathan","doi":"10.1016/0269-7483(90)90116-A","DOIUrl":null,"url":null,"abstract":"<div><p>The mechanism of degradation of paper-mill sludge containing lignin and cellulose was studied, for establishing a technology for the bioconversion of paper-mill solid wastes and waste lignins to useful materials and for protecting the environment from lignin-related pollutants. The degradation of cellulose by <em>Pleurotus sajor-caju</em> was rapid at the initial stages of growth. The activities of endoglucanase, exoglucanase and β-glucosidase were maximum at 8, 12 and 26 days of growth, respectively. The activities of lignin-degrading enzymes were maximum at the later stages of the growth. Such a delignification process is considered to have potential applications in the cinversion of paper-mill sludge into food, animal feed and fibre products.</p></div>","PeriodicalId":100177,"journal":{"name":"Biological Wastes","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0269-7483(90)90116-A","citationCount":"32","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biological Wastes","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/026974839090116A","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 32
Abstract
The mechanism of degradation of paper-mill sludge containing lignin and cellulose was studied, for establishing a technology for the bioconversion of paper-mill solid wastes and waste lignins to useful materials and for protecting the environment from lignin-related pollutants. The degradation of cellulose by Pleurotus sajor-caju was rapid at the initial stages of growth. The activities of endoglucanase, exoglucanase and β-glucosidase were maximum at 8, 12 and 26 days of growth, respectively. The activities of lignin-degrading enzymes were maximum at the later stages of the growth. Such a delignification process is considered to have potential applications in the cinversion of paper-mill sludge into food, animal feed and fibre products.