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An Effective Degumming Technology for Ramie Fibers Based on Microbial Coculture Strategy

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文献类型：外文期刊

作者： Yang, Qi ¹ ; Duan, Shengwen ¹ ; Cheng, Lifeng ¹ ; Feng, Xiangyuan ¹ ; Zheng, Ke ¹ ; Liu, Zhiyuan ¹ ; Gao, Mingqiang ¹ ; P ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Bast Fiber Crops, Changsha 410205, Peoples R China

关键词： Ramie; fibers; microbial degumming; coculture strategy; enzymatic activity; fermentation optimization

期刊名称：JOURNAL OF NATURAL FIBERS （影响因子：5.323；五年影响因子：4.183 ）

ISSN： 1544-0478

年卷期：

页码：

收录情况： SCI

摘要： Microbial treatment of natural fibers is a preferred alternatives in ramie degumming process as compared to conventional chemical degumming technology with alkaline treatment at high temperature. Usually, it is difficult to degrade the noncellulosic components of ramie bast completely with a single strain in the mono-culturing degumming system. Microbial coculture strategy has been widely used in biotechnology, especially in the degradation of biological materials. In the present study, five strains for ramie degumming were identified asDickeya dadantiistrain DCE-01,Bacillus subtilisstrain 1101,Bacillussp. B6,Bacillus cereusstrain B7, andBacillus cereusstrain B8 by sequencing of 16 S rRNA genes. Enzymatic activities characterization, ramie degumming experiments with mono-culturing systems, and the evaluation of strain compatibility showed that group DCE-01/B7 were the most suitable pairs for the construction of bacterial coculturing system. After preliminary optimization of coculturing fermentation condition, the weight loss weight ratio of ramie fibers was 27%, which was increased 13.6% and 8.9% while compared to mono-culturing systems of strain B7 and DCE-01 respectively. These data highlighted the benefit of microbial coculture strategy in the application of ramie degumming process, and indicated a higher-efficiency alternative for the microbial degumming in the textile industry.

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An Effective Degumming Technology for Ramie Fibers Based on Microbial Coculture Strategy

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