南极磷虾蛋白的提取及其复合纤维的性能  

Extraction of Antarctic krill protein and properties of its composite fibers

作　　者：郭静[1] 李学才[1] 于春芳[1] 张丽[1] 管福成[1] 曲敏杰[1] 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034

出　　处：《大连工业大学学报》2014年第4期270-273,共4页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅一般项目(LR2012017)

摘　　要：研究了南极磷虾蛋白质的碱提取工艺。将南极磷虾蛋白质溶液与海藻酸钠溶液共混,并纺丝制备了复合纤维,研究了制备工艺条件与复合纤维力学性能的相关性,考察了共混纤维的热稳定性。南极磷虾蛋白质的提取的最优工艺为:NaOH质量分数为2%,反应时间5h,反应温度70℃。采用FTIR、XRD分析了南极磷虾蛋白质的结构。FTIR表明磷虾提取物具有蛋白质的特征,属于磷虾蛋白。XRD表明自然析出的蛋白质结构规整,结晶度高;在30℃凝固浴中纺丝纤维强度和断裂伸长最好,分别达到1.14cN/dtex、15.1%。Antarctic krill protein was extracted with aqueous alkali and blended with sodium alginate solution to prepare the protein fibers. The optimal condition for preparation was NaOH content 2 %, time 5 h and temperature 70 ℃. The structure of Antarctic krill protein was analyzed by FTIR and X ray diffraction. FTIR suggested the extracted was Antarctic krill protein and XRD showed the neat structure and high crystallinity. The tensile strength and the breaking elongation of the fiber were 1.14 cN/dtex and 15.1% respectively when spin at 30 ℃.

关 键 词：南极磷虾 蛋白质 复合纤维 碱法提取 

分 类 号：TS254.9[轻工技术与工程—水产品加工及贮藏工程]