黑荆树皮单宁降解产物的抑菌性能  

INHIBITION EFFECTS OF THE DEGRADED BLACKWATTLE TANNINS ON MICROORGANISMS

作　　者：何有节[1,2] 狄莹[1,2] 赵宇 何先祺[1,2] 石碧[1,2] 姚开[1,2] 谭敏 

机构地区：[1]四川联合大学皮革工程国家专业实验室 [2]四川联合大学食品工程系

出　　处：《林产化学与工业》1999年第2期1-7,共7页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金;林业部科学技术研究项目;四川联合大学青年科学基金

摘　　要：通过对黑荆树皮单宁化学降解改性，制备了具有优良抑菌性能的降解产物。用滤纸圆片法研究了降解产物对６种细菌、２种霉菌和１种酵母菌三大类微生物的抑制作用，发现降解产物的抑菌作用与其分子量及分布有关。在一定的分子量及分布条件下，降解产物对大肠杆菌、金黄色葡萄球菌、蜡状芽孢杆菌、铜绿假单胞菌、志贺氏痢疾杆菌等５种菌有明显的抑制作用，其最低抑制浓度（ＭＩＣ）分别为００５％、００３％，００５％，００３％、００５％，均比茶多酚对相应微生物的最低抑制浓度低约一个数量级。The degraded product which has excellent inhibition effect on microorganisms was prepared from black wattle tannin by chemical degraded modification.The inhibition effect of the degraded products on three types of microorganisms(six germs,two molds and one yeast)were investigated by means of filter paper disks method.It had been found that the inhibition effect was related to the molecular weight and molecular weight distribution of the degraded products.One of the degraded products with predominent molecular distribution of 189760 showed manifest inhibition effect on Escherichia coli,Staphylococcus aureus,Bacillus cereous,Pseudomonas aeruginosa and Shigella dysenteriae.The minimum inhibition concentrations to the microorganisms above are 0.05%0.03%0.05%0.03% and 0.05% individually,which are about 10 times lower than that of tea polyphenol.The data obtained in this paper could be very useful for expanding utilization of black wattle tannin,in particularly,the application of the degraded products in modification;tea polyphenolfood and medicine industries.

关 键 词：植物多酚 抑菌性 黑荆树皮单宁 降解改性 单宁 

分 类 号：TQ464.9[化学工程—制药化工]