文章基本信息

标题：Antimicrobial activity of olive mill wastewater extract against Pseudomonas fluorescens isolated from mozzarella cheese
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作者：Rossana Roila ; Raffaella Branciari ; David Ranucci 等
期刊名称：Italian Journal of Food Safety
电子版ISSN：2239-7132
出版年度：2016
卷号：5
期号：2
DOI：10.4081/ijfs.2016.5760
语种：English
出版社：PAGEPress Publications
摘要：Olive mill wastewater polyphenol extract was tested for antimicrobial activity against 64 strains of Pseudomonas fluorescens responsible for mozzarella discolouration. The extract showed a minimum inhibitory concentration (MIC) 50 value of 5 mg/mL and a MIC 90 value of 7 mg/mL. The MBC 50 and MBC 90 values corresponded to 6 and 8 mg/mL, respectively. The MIC concentration (7 mg/mL) was demonstrated to have a bacteriostatic effect while maintaining the bacterial concentration on the levels of the inoculum for 48 hours. The 3/2 MIC concentration was responsible for four logs CFU/mL depletion in colony count after 24 h. As the extract concentration decreased from MIC value, no inhibitory effects were recorded.
关键词：Pseudomonas fluorescens;Olive mill wastewater;Polyphenols;Antibacterial;By-product