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Selection of the High-yielding Cellulose-niger Strain

Feng Pei-yong

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Abstract

[Objective] The production bacteria of high-yielding cellulose was bred.[Method] The niger(Aspergillus niger)F1 being used as starting strain,the production bacteria strain of high-yielding cellulase was selected after its mutation treatment of UV,nitrosoguanidine and DES.[Results] Under the suitable conditions,the CMC vitality of D3 strain selected could be 45.5% higher than that of starting strain.[Conclusion] There was different working mechanism among NTG,DES and ultraviolet,but all of those could affect the DNA mutation of microbial cell.

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What this paper is about

[Objective] The production bacteria of high-yielding cellulose was bred.[Method] The niger(Aspergillus niger)F1 being used as starting strain,the production bacteria strain of high-yielding cellulase was selected after its mutation treatment of UV,nitrosoguanidine and DES.[Results] Under the suitable conditions,the CMC vitality of D3 strain selected could be 45.5% higher than that of starting strain.[Conclusion] There was different working mechanism among NTG,DES and ultraviolet,but all of those could affect the DNA mutation of microbial cell.

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Available abstract

[Objective] The production bacteria of high-yielding cellulose was bred.[Method] The niger(Aspergillus niger)F1 being used as starting strain,the production bacteria strain of high-yielding cellulase was selected after its mutation treatment of UV,nitrosoguanidine and DES.[Results] Under the suitable conditions,the CMC vitality of D3 strain selected could be 45.5% higher than that of starting strain.[Conclusion] There was different working mechanism among NTG,DES and ultraviolet,but all of those could affect the DNA mutation of microbial cell.

Key concepts: Aspergillus niger, Strain (injury), Cellulose, Bacteria, Cellulase, Food science, Mutation, Chemistry

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