Research on Pectase Secreted by Aspergillus Niger Degumming Kenaf Bast Fiber  

作　　者：郑来久 杜冰 黄秀宝 

机构地区：[1]Natural Fiber Engineering Research Center,Dalian Polytechnic University [2]College of Textiles,Donghua University

出　　处：《Journal of Donghua University(English Edition)》2007年第3期404-407,412,共5页东华大学学报（英文版）

基　　金：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 %.在这篇论文，曲霉属菌尼日尔的氧气的新陈代谢机制(作为 3.3 50 )，它是为使脱胶的最合适的细菌 kenaf 纤维，被详细说明，并且果胶的 macromolecular 结构也是 analyzed.The 骨折 kenaf 果胶和它的长出结构的 macromolecular 链的位置，由 Endo-PG 和 Exo-PG 影响了被分泌由作为 3 。350 并且在分子规模探索了。使脱胶的最佳的价值参数被修理：温度 34 - 36，时间 48 - 50 h， pH 6.5 - 7.5。与自然方法获得的 kenaf 纤维相比，由简历酶的方法使脱胶更好，更光滑的表面拥有分离，更少的缺陷并且更高：力量与。14.5 % 的剩余果胶百分比。

关 键 词：Aspergillus Niger Endo-PG Exo-PG kena ffiber MECHANICS 

分 类 号：TS123.3[轻工技术与工程—纺织材料与纺织品设计]