期刊论文

中文

农产品加工

1671-9646

2014

09

13-15

10.3969/jissn.1671-9646(X).2014.05.005

本校为第一机构

采用活菌计数的方法研究儿茶素对EHEC O157∶H7的抑菌作用及培养温度、 pH值、 NaCl等因素对儿茶素抑菌活性的影响。结果表明，儿茶素对EHEC O157∶H7最小抑菌质量浓度为1.25 g/L；儿茶素对该菌株的抑制作用具有良好的稳定性，在37℃的中性环境中抑制作用较明显；同时， NaCl与儿茶素能起到协同作用，随着NaCl质量分数越大，儿茶素对EHEC O157∶H7的抑制作用越明显。儿茶素对EHEC O157∶H7的生长有较显著的抑制效果，且稳定性较好，这为儿茶素在食品和医药保健品方面的应用提供了理论依据。

The inhibition effects of catechin to EHEC O157∶H7 are reported in this paper, and the culture parameters, such as temperature, pH, NaCl, are showed, through viable counting method. All results show that there is a stable bacteriostatic action of catechin to EHEC O157∶H7. Especially, in neutral environment at 37 ℃, this action is relatively obvious. Furthermore, NaCl and catechins can play a good synergy effects, the bacteriostatic action will be more obvious with increasing of NaCl concentration. In a conclusion, the catechin has a signific...