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Mutation Screening of High Cellulase-producing Strains by Ultraviolet and Its Enzyme Activity

Yao Zhang

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Abstract

A Trichoderma viride strain was treated with ultraviolet to screen out a high cellulase-producing strain and apply in straw feed fermentation.The results showed that a high cellulase-producing strain with high cellulose yield and stable characteristics,which was named ZJUV18,was screened out.The FPA could be up to 68.07 U/g after fermented for 72 hours,which was 4.45 times the activity of the original strain.

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What this paper is about

A Trichoderma viride strain was treated with ultraviolet to screen out a high cellulase-producing strain and apply in straw feed fermentation.The results showed that a high cellulase-producing strain with high cellulose yield and stable characteristics,which was named ZJUV18,was screened out.The FPA could be up to 68.07 U/g after fermented for 72 hours,which was 4.45 times the activity of the original strain.

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Available abstract

A Trichoderma viride strain was treated with ultraviolet to screen out a high cellulase-producing strain and apply in straw feed fermentation.The results showed that a high cellulase-producing strain with high cellulose yield and stable characteristics,which was named ZJUV18,was screened out.The FPA could be up to 68.07 U/g after fermented for 72 hours,which was 4.45 times the activity of the original strain.

Key concepts: Cellulase, Trichoderma viride, Fermentation, Strain (injury), Cellulose, Food science, Yield (engineering), Enzyme

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