微波法提取羊毛角蛋白  

Wool Keratin Extraction with Microwave Method

作　　者：杜文倩 张力冉 李宏伟[1] 李文霞[1] 李卓冉 盛波 DU Wen-qian;ZHANG Li-ran;LI Hong-wei;LI Wen-xia;LI Zhuo-ran;SHENG Bo(School of Materials Design and Engineering,Beijing Institute of Fashion Technology,Beijing 100029,China)

机构地区：[1]北京服装学院材料设计与工程学院,北京100029

出　　处：《北京服装学院学报（自然科学版）》2020年第4期8-13,共6页Journal of Beijing Institute of Fashion Technology：Natural Science Edition

基　　金：国家自然科学基金面上项目(51572293);北京市教育委员会科技计划一般项目(KM202010012009);北京服装学院青年教师启动计划(BIFTXJ201916);2020年北京服装学院大学生创业训练项目(X2020100120837)。

摘　　要：从羊毛废弃物中提取角蛋白,可促进羊毛废弃物的持续利用,减少环境污染。采用水浴和微波2种加热方法,通过还原法从废弃羊毛中提取角蛋白,探索了还原剂浓度、反应时间、反应温度、表面活性剂浓度、pH值及微波功率等因素对羊毛溶解率的影响。结果表明:与水浴热诱导相比,在相同的实验温度下,微波热诱导可大大缩短提取时间、提高羊毛溶解率,其中微波加热的最佳提取工艺:尿素浓度8 mol/L,焦亚硫酸钠浓度0.3 mol/L,十二烷基硫酸钠(SDS)浓度0.2 g/L,体系pH为6.5,反应温度65℃,反应时间2 h,微波功率为400 W。Extracting keratin from wool waste can promote the sustainable use of wool waste and reduce environmental pollution.Keratin was extracted in this study from wool waste with reduction method and by using two heating methods of water bath and microwave.The effects of reducing agent concentration,reaction time,reaction temperature,surfactant concentration,pH and microwave power on the dissolution rate of wool were explored.The results indicate that,compared to water bath thermal induction,microwave thermal induction method can greatly shorten the extraction time and increase the dissolution rate of the wool under the same experimental temperature.The optimal synthesis process of microwave method is achieved under the conditions of urea(CH4 N2 O) of 8 M,sodium metabisulfite(Na2 S205) of 0.3 M,sodium dodecyl sulfate(SDS) of 0.2 g/L,pH of 6.5,reaction temperature of 65 ℃,reaction time of 2 h,and microwave power of 400 W.

关 键 词：羊毛角蛋白 微波法 羊毛溶解率 

分 类 号：O6[理学—化学]