标题：BIOLOGICAL PRETREATMENT OF SOFT-WOOD LARIX KAEMPFERI USING THREE WHITE-ROT FUNGI -CORTICIUM CAERULEUM, HETEROBASIDIONINSULARE AND PSEUDOTRAMETES GIBBOSA
摘要：The impact of the bio-pretreatment for Larix kaempferi was assessed after its exposure to three white-rot fungi, namely Corticoid caeruleum, Heterobasidion Insulare, and Pseudotrametes gibbosa. Their changes in chemical composition, micro-structure as well as their predisposition to enzymatic saccharifying and wood decomposition were investigated. Three white-rot fungi were tested. H. Insulare selectively reduced this wood lignin and cellulose, instead of the whole assembly. After an 8-week pretreatment with H. insulare, the weight loss was 10.7%, and the test sample of lignin lost 14.52% at most. In comparison, all cellulose was lost due to C. caeruleum and P. gibbosa by 7.81% or less. Data show that the enzyme secreted outside exhibits cellulase from H. Insulare concentration higher than other strains of white-rot fungi. Thus, lignin and cellulose activities depend on the total weight loss of L. Besides, kaempferi and other chemical composition of the sample with three white-rot fungi secreted a good correlation. According to the experimental analysis, X-ray diffraction (XRD) and pore size distribution of the sample timber obtained from the degradation of the physical data, optimistic forecast of H. Insulare could be processed using efficiency potential fungal strain targets through woody biomass pretreatment. Compared with the non-disaccharide yield, pretreatment with a control sample greatly increased to 21.01%. Experimental results also show that white-rot fungal strain H. Insulare in lignin degradation process does not provide the necessary biomass. Nevertheless, disaccharide provides an effective method.
