生物降解聚乙烯醇研究进展  

Biodegradation of Polyvinyl Alcohol

作　　者：李敏[1,2] 堵国成[1,2] 陈坚[1,2] 

机构地区：[1]江南大学工业生物技术教育部重点实验室,江苏无锡214122 [2]江南大学生物工程学院,江苏无锡214122

出　　处：《食品与生物技术学报》2008年第5期8-14,共7页Journal of Food Science and Biotechnology

基　　金：国家科技部高技术研究发展计划863项目(2003AA322050);江苏省高技术研究项目(BG2005016)

摘　　要：聚乙烯醇(PVA)在纺织工业中被广泛用作上浆剂。经PVA上浆的棉织物必须经过退浆处理,以增加棉织物对水的吸收性。相对于传统的热水退浆法,生物降解PVA可以节省较多的热能,其生物分解性好,没有二次污染。因此,很多研究者致力于PVA的生物降解的研究并已取得一定的研究成果。在总结文献的基础上,重点介绍了PVA降解菌的培养特性、共生关系,PVA降解酶的性质及对PVA的生物降解过程,PVA降解酶相关基因的研究进展,并给出了PVA降解酶将来可能的发展方向。Polyvinyl alcohol was widely used as sizing agent in textile industry. Cotton fabrics treated with PVA must be desized so as to enhance the water soluble ability of cotton fabrics. Compared with the traditional desizing method with hot water, biodegradation of PVA is an alternative approach because of the free of heat energy and good bio-decomposable and no second pollution. Therefore, more and more interests were attracted to biodegradation of PVA. In this review, cultural characteristics and symbiotic pattern of PVA-degrading microorganisms, characteristics of PVA degrading enzyme and the degrading mechanism, cloning and expression of PVA-degrading enzyme gene were focused. Finally, some suggestions were put forward to improve the research in this field in the near future.

关 键 词：聚乙烯醇 PVA降解酶 生物降解 

分 类 号：X705[环境科学与工程—环境工程]