韧皮结构对罗布麻生物脱胶的影响  

Investigation on bio-recalcitrance in biodegumming of Apocynum

作　　者：巩继贤[1,2] 张秋亚[1,2] 张涛[1,2] 李政[1,2] 张健飞[1,2] 

机构地区：[1]天津工业大学纺织学院,天津300387 [2]天津工业大学先进纺织复合材料教育部重点实验室,天津300387

出　　处：《纺织学报》2017年第12期83-87,共5页Journal of Textile Research

基　　金：国家重点研发计划项目(2016YFC0400503-02);新疆自治区重大专项项目(2016A03006-3);中国纺织工业联合会科技指导性项目(2017011)

摘　　要：针对目前生物脱胶仍存在的效率低、质量不稳定等问题,以罗布麻为研究对象,从成分组成与结构分布等角度分析了罗布麻韧皮组织对生物作用的的抗性屏障。结果表明:罗布麻韧皮组织胶质组分为45%~55%,是麻纤维中胶质含量最高的;且罗布麻韧皮组织胶质层较厚,纤维束排列整齐有序,直接接触脱胶介质的表层组织中,外为角质层,内层为木质素层,结构致密,疏水性高,可及度低;罗布麻韧皮组织对大肠杆菌和金黄色葡萄球菌的抑菌率分别为22%和14%;罗布麻韧皮组织中的高含量胶质、特殊超微结构以及抑菌物质的存在,构成罗布麻韧皮组织在生物脱胶过程中所需要破除的多层次抗性屏障。In order to solves the problems of biodegumming on low efficiency and instable quality,using Apocynum as the subject,Biorecalcitrance of Apocynum bast fibers was investigated from the aspects of composition and structure.The results show that the content of gum substance in Apocynum bast is 45%-55%,which the higher than that of ramie,hemp,flax,jute,et al.The colloid layer is thicker and the fiber bundles are arranged in an orderly manner in Apocynum bast.The outer and inner layer in textura epidermoidea of Apocynum bast,which are in direct contact with liquid containing enzymes,are cuticle and lignin,respectively.These compact structures result in high hydrophobicity and low accessibility.Apocynum bast has certain antibacterial activities against E.coli and S.aureus of 22% and 14%.So,a multi-level recalcitrance structure of Apocynum bast to biodegumming process is constituted by high gum substance proportion,special ultrastructure and the existence of antibacterial component.

关 键 词：罗布麻 生物脱胶 抗性屏障 韧皮组织 抑菌率 

分 类 号：TS192.5[轻工技术与工程—纺织化学与染整工程]