食品与机械2017，Vol.33Issue(9)：117-120,4.DOI:10.13652/j.issn.1003-5788.2017.09.025
苯乳酸与食品防腐剂联合抑菌效果
Study on antibacterial activity of phenyllactic acid combined with food preservatives
摘要
Abstract
The antibacterial activity of phenyllactic acid (PLA) combined with food preservatives against foodborne pathogens Escherichia coli and Listeria monocytogenes was studied.The minimal inhibitory concentrations were determined by broth microdilution method and the interaction of PLA with food preservatives was determined using the checkerboard test.Furthermore,the synergistic effect of the optimized combination was evaluated through the time-kill assay.Results showed that PLA combined with nisin showed indifference effect against E.coli and additive effect against L.monocytogenes.The interaction of PLA and ethyl p-hydroxybenzoate showed an additive effect against E.coli and L.monocytogenes.PLA combined with EDTA-Na2 or e-poly-L-lysine was observed indifference against E.coli and L.monocytogenes.PLA combined with sodium benzoate or potassium sorbate exhibited synergistic effect against E.coli,and additive effect against L.monocytogenes.The dosage of PLA was decreased 75 ％,and that of sodium benzoate or potassium sorbate reduced 50％,when PLA combined with sodium benzoate or potassium sorbate against E.coli.关键词
苯乳酸/食品防腐剂/协同抑菌Key words
phenyllactic acid/food preservatives/synergistic antibacterial effect引用本文复制引用
宁亚维,闫爱红,王世杰,王志新,李兴峰,朱宏,贾英民..苯乳酸与食品防腐剂联合抑菌效果[J].食品与机械,2017,33(9):117-120,4.基金项目
河北省杰出青年基金(编号:C2016208142) （编号:C2016208142）
河北省自然科学基金(编号:C2016208150) （编号:C2016208150）
国家自然科学基金(编号:31401653) （编号:31401653）
