桑黄乙醇提取物对乳制品有害菌的抑制作用  

Antimicrobial Activities of Ethanol Extracts from Phellinus baumii. towards Harmful Microorganisms in Dairy Products

作　　者：王钦博[1] 杨焱[2] 齐晓彦[1] 

机构地区：[1]乳业生物技术国家重点实验室光明乳业股份有限公司,上海200436 [2]农业部南方食用菌资源利用重点实验室上海市农业科学院食用菌研究所国家食用菌工程技术研究中心,上海201403

出　　处：《乳业科学与技术》2016年第1期1-4,共4页JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY

基　　金："十二五"国家科技支撑计划项目(2012BAD28B07)

摘　　要：利用95%乙醇提取桑黄子实体中抑菌成分,研究不同质量浓度的桑黄乙醇提取物对牛乳中革兰氏阳性菌、阴性菌、霉菌和酵母的抑制作用。结果表明：桑黄乙醇提取物在0.1~5 mg/m L质量浓度下,实现了对牛乳中有害细菌、真菌有效的抑制,能显著控制巴氏牛乳中菌群总数,而对有益菌无显著影响,相对Nisin等抑菌剂具有广谱抑菌性,因此可将其用于生产乳品抑菌剂。Phellinus baumii is a highly-valued medicinal mushroom. In the current study, inhibitory effects of different concentrations of the 95% ethanol extract from Phellinus baumii were examined on Gram-positive, Gram-negative, molds and yeasts. The results showed that the Phellinus baumii ethanol extract at concentrations in the range of 0.1 to 5 mg/mL was effective against the growth of harmful bacteria and fungi and could obviously control the total number of bacteria in milk without having any signifi cant adverse impact on benefi cial bacteria. Meanwhile, the extract had a broader antimicrobial spectrum than antimicrobials such as nisin, suggesting its potential application for inhibiting harmful microorganisms in milk and dairy products.

关 键 词：乳制品 桑黄 乙醇提取物 霉菌 酵母 细菌 

分 类 号：TS252.1[轻工技术与工程—农产品加工及贮藏工程]