廖思含,李娜,张景雯,刘迪,崔莉

• 1:江南大学纺织科学与工程学院

摘要(Abstract)：

目前，对环保安全的纺织品功能整理剂的需求日益增长，文中利用谷氨酰胺转氨酶（TG）催化的酰基转移反应，将富含氨基的ε-聚赖氨酸接枝到富含谷氨酰胺残基的玉米醇溶蛋白（zein）分子上，获得具有多氨基的zein，并将其整理到氧化棉织物上，赋予棉织物持久的疏水性和抗菌性能。凝胶电泳（SDS-PAGE）结果表明，接枝反应后zein与ε-聚赖氨酸形成了高相对分子质量的蛋白聚合物，蛋白结构中伯胺基团和赖氨酸残基含量显著增加。接枝条件：zein用量为5 g·L~(-1)、ε-聚赖氨酸用量为1 g·L~(-1)、酶用量为60 U·g~(-1)、反应时间为5 h，得到的接枝产物对氧化棉改性，可获得水滴接触角为135.6°±0.3°的疏水性棉织物。红外光谱（FTIR）和扫描电子显微镜（SEM）结果表明，氨基化zein通过希夫碱反应整理到棉纤维表面，金黄色葡萄球菌和大肠杆菌的抑菌率分别达到77.85%和88.53%。整理后的棉织物具有良好的耐皂洗和耐摩擦稳定性。研究工作为材料表界面领域中探索环保无毒的新型疏水表面材料及疏水表面构筑提供了新的途径。

关键词(KeyWords)： 玉米醇溶蛋白;谷氨酰胺转氨酶;ε-聚赖氨酸;疏水棉

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(22178145)

作者(Author): 廖思含,李娜,张景雯,刘迪,崔莉

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