青海高原宽鳞大孔菌胞外多糖抑菌活性初步研究  

Preliminary study on antimicrobial characteristics of Favolus squamosus exopolysaccharide of Qinghai plateau

作　　者：王恒生[1] 陈克龙[2] 毛亚辉[2] 刁治民[2] 曹生奎[2] 赵端 

机构地区：[1]安徽农业大学生命科学学院,合肥230036 [2]青海师范大学生命与地理科学学院,西宁810008 [3]合肥海正环境监测有限责任公司,合肥230088

出　　处：《中国食品添加剂》2015年第11期79-84,共6页China Food Additives

摘　　要：为研究宽鳞大孔菌胞外多糖对细菌和真菌的抑制作用,本文采用分光光度法研究了宽鳞大孔菌胞外多糖对大肠杆菌、枯草芽抱杆菌、金黄色葡萄球菌、白色念珠菌、酵母菌、红色面包霉、尖刀镰刀菌、小麦根腐菌的抑制作用,并探讨不同发酵液p H值时对其抗菌活性的影响,以确定最佳抑菌p H值。结果表明,宽鳞大孔菌胞外多糖对各抗示菌的抑菌率随着其浓度的增加而增大。p H值对抑菌作用有一定的影响,不同p H值时对各抗示菌种抑菌率各不相同,具有较强的酸碱耐受范围。Favolus squamosus is a potential new edible fungi resource and its exopolysaccharide anti-bacterial activities to Escherichia coli,Bacillus subtilis,Staphylococcus aureus,Monilia albican,Saccharomyces cerevisiae,Neurospora crassa,Fusarium oxysporum,Cochliobolus sati-vu was measured by Spectrophotometry.The effect of p H value on anti-bacterial activity was also discussed and the optimal anti-bacterial p H value was determined.The results indicated that the inhibition rate increased with its concentration.The p H value had some influences on anti-bacteria1 effect,p H value for each bacteria inhibition is varied and has a wide acid tolerant range.

关 键 词：宽鳞大孔菌 紫外分光光度法 胞外多糖 抑菌 

分 类 号：Q815[生物学—生物工程] S759.81[农业科学—森林经理学]