Straw bio-degradation by acidogenic bacteria and composite fungi  

作　　者：ZHANGKe-qiang CHENXiu-wei JIMin NINGAn-rong FANHuan ZHOUKe 

机构地区：[1]China.CollegeofEnvironmentalScienceandEngineering,TianjinUniversity,Tianjin300072 [2]TianjinAgro-biologicalTechniqueResearchCenter,Tianjin300192,China [3]AgriculturalEnvironmentProtectionInstitute,M.O.A.,Tianjin300191,China

出　　处：《Journal of Environmental Sciences》2004年第4期690-693,共4页环境科学学报（英文版）

基　　金：TianjinKeyProjectforAgro BiologicalTechnology(No.0 0 31 2 2 1 1 1 2 )

摘　　要：A composite microbial system, including a strain of Candida tropicalis(W3), a strain of Lactobacillus plantarm(WY3) and three strains of basidiomycete pL104, pL113 and C33, was chosen to degrade corn straw. The final pH was acid owing to the inoculation of acidogenic bacteria, and under this condition the composite fungi system could produce complex enzyme to destroy the compact structure of corn straw. The experimental results showed that the biomass of composite fungi could reach up to maximum when the pH value was 4.5. Through the bio-degradation by combining acidogenic bacteria with the composite fungi system, the cellulose, hemi-cellulose and lignin degradation rates of corn straw powder were 26.36%, 43.30% and 26.96%, respectively. And the gross crude protein content increased 60.41%. This study provided the evidence for the feasibility of developing a composite microbial system with high capability of degrading straw lignocelluloses in order to make reasonable use of straw resource and protect rural eco-environment.A composite microbial system, including a strain of Candida tropicalis(W3), a strain of Lactobacillus plantarm(WY3) and three strains of basidiomycete pL104, pL113 and C33, was chosen to degrade corn straw. The final pH was acid owing to the inoculation of acidogenic bacteria, and under this condition the composite fungi system could produce complex enzyme to destroy the compact structure of corn straw. The experimental results showed that the biomass of composite fungi could reach up to maximum when the pH value was 4.5. Through the bio-degradation by combining acidogenic bacteria with the composite fungi system, the cellulose, hemi-cellulose and lignin degradation rates of corn straw powder were 26.36%, 43.30% and 26.96%, respectively. And the gross crude protein content increased 60.41%. This study provided the evidence for the feasibility of developing a composite microbial system with high capability of degrading straw lignocelluloses in order to make reasonable use of straw resource and protect rural eco-environment.

关 键 词：LIGNOCELLULOSE bio-degradation acidogenic bacteria composite fungi system 

分 类 号：X171[环境科学与工程—环境科学]