Enzymology of ligno-cellulose degradation by Pleurotus sajor-caju during growth on paper-mill sludge

K. Kannan , G. Oblisami, B.G. Loganathan
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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.

造纸污泥生长过程中平菇降解木质素纤维素的酶学研究
研究了含木质素和纤维素的造纸厂污泥的降解机理,建立了将造纸厂固体废物和废木质素生物转化为有用物质的技术,保护环境免受木质素相关污染物的污染。在生长初期,侧耳菇对纤维素的降解速度很快。内切葡聚糖酶、外切葡聚糖酶和β-葡萄糖苷酶活性分别在生长第8、12和26天达到最大值。木质素降解酶的活性在生长后期达到最大值。这种脱木质素过程被认为在将造纸厂污泥转化为食品、动物饲料和纤维产品方面具有潜在的应用。
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