摘要
在浴比为1∶50的条件下,采用单因素控制法,分别探究脱胶温度、碱性蛋白酶质量浓度与脱胶时间对木薯蚕茧脱胶率的影响,寻找酶法脱胶的最佳工艺,并将酶法脱胶与碱法脱胶后的木薯蚕丝形貌、力学性能进行对比。结果表明:脱胶最佳工艺为温度50℃、酶质量浓度6 g/L、时间180 min。在最佳工艺条件下,木薯蚕丝的脱胶效果明显,丝胶被全部去除,表面光滑平整,蚕丝抗拉、抗断能力下降,断裂强力为5.82 cN,下降了13.09%。与碱法脱胶相比,酶法脱胶后的木薯蚕丝力学性能更好。
Under the condition of bath ratio 1 ∶ 50, the effects of temperature, concentration and time on the degumming rate of cassava cocoon with alcalase by controlling single factor explored, to find the optimum technology of enzymatic degumming. The shape characteristic and mechanical property of the cassava cocoon by enzymatic degumming and alkaline degumming are compared. The results show that the optimum degumming process are degumming at 50℃ for 180 min with concentration of 6 g/L. Under the optimum process conditions, the degumming effect of cassava silk is obvious, the silk glue all has been removed and the surface is smooth and flat. The tensile and breaking capacity decrease and the breaking strength is 5.82 cN decreased by 13.09%. The mechanical property of the cassava cocoons by enzymatic degumming is better than that by alkali degumming.
作者
魏子凯
黄继伟
林海涛
宁晚娥
WEI Zikai;HUANG Jiwei;LIN Haitao;NING Wan e(Guangxi Sugar Resource Green Processing Key Laboratory, Liuzhou 545006, China;College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China;College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China)
出处
《上海纺织科技》
北大核心
2019年第5期41-44,共4页
Shanghai Textile Science & Technology
基金
国家自然基金项目(51763001)
广西自然科学基金项目(2016GXNSFBA380015)
广西科学研究与技术开发计划重大计划项目(桂科AA16380045)
柳州市科技计划项目(2018BD20501)
关键词
蚕茧
脱胶率
脱胶工艺
机械性能
木薯蚕茧
碱性蛋白酶
cocoon
degumming percentage
degumming process
mechanical property
cassava cocoons
alcalase
