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| Research on Pectase Secreted by Aspergillus Niger Degumming Kenaf Bast Fiber | |
| 作者姓名： | 郑来久 杜冰 黄秀宝 |
| 作者单位： | [1]Natural Fiber Engineering Research Center, Daliao Polytechnic University, Dalian, Liaoning 116034, China [2]College of Textiles, Donghua University, Shanghai201620, China College of Textiles, Donghua University, Shanghai201620, China College of Textiles, Donghua University, Shanghai201620, China |
| 基金项目： | Foundation items： Ministry of Education（No. 03028） ; Fund Item of Liaoning Province（No. 2050866） |
| 摘 要： | In this paper, the aerobic metabolism mechanism of Aspergillus Niger （AS 3.3 50 ）, which is the most suitable bacteria for degumming kenaf fiber, is expounded, and macromolecular structure of pectin is also analyzed. The fracture position of the macromolecular chain of kenaf pectin and its outgrowth structure, affected by Endo-PG and Exo-PG are secreted by AS 3. 350 and explored in molecule scale. The optimal value of degumming parameters are fixed： temperature 34 - 36℃, time 48 - 50 h, pH 6.5 - 7.5. Compared with kenaf fibers obtained by natural method, the ones deguntmed by bio-enzymatic method possess of smoother surface, .better. Separation, less impairment and higher strength with. residual pectin percentage of 14.5 %. |
| 关 键 词： | 纺织技术 纺织品 设计方案 复合材料 纺织设备 |
| 文章编号： | 1672-5220（2007）03-0404-04 |
| 修稿时间： | 2006-10-17 |
Research on Pectase Secreted by Aspergillus Niger Degumming Kenaf Bast Fiber |
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| ZHENG Lai-jiu,DU Bing,HUANG Xiu-bao.Research on Pectase Secreted by Aspergillus Niger Degumming Kenaf Bast Fiber[J].Journal of Donghua University,2007,24(3):404-407,412. | |
| Authors: | ZHENG Lai-jiu DU Bing HUANG Xiu-bao |
| Institution: | 1. Natural Fiber Engineering Research Center, Dalian Polytechnic University, Dalian, Liaoning 116034, China;College of Textiles, Donghua University, Shanghai 201620, China 2. Natural Fiber Engineering Research Center, Dalian Polytechnic University, Dalian, Liaoning 116034, China 3. College of Textiles, Donghua University, Shanghai 201620, China |
| Abstract: | In this paper, the aerobic metabolism mechanism of Aspergillus Niger (AS 3.3 50), which is the most suitable bacteria for degumming kenaf fiber, is expounded, and macromolecular structure of pectin is also analyzed.The fracture position of the macromolecular chain of kenaf pectin and its outgrowth structure, affected by Endo-PG and Exo-PG are secreted by AS 3. 350 and explored in molecule scale. The optimal value of degumming parameters are fixed: temperature 34 - 36℃, time 48 - 50 h, pH 6.5 - 7.5. Compared with kenaf fibers obtained by natural method, the ones degummed by bio-enzymatic method possess of smoother surface, better, separation, less impairment and higher: strength with. residual pectin percentage of 14.5 %. |
| Keywords: | Aspergillus Niger Endo-PG Exo-PG kena ffiber mechanics |
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