期刊论文

Lian, G.-J.

中文

现代食品科技

1673-9078

2013

29

12

2889-2893

10.13982/j.mfst.1673-9078.2013.12.024

湖南省自然科学基金项目（13JJ3081）； 湖南省教育厅项目（12C0360）； 南华大学博士启动基金项目（2011XQD54）；

本校为第一且通讯机构

低压水银管是常见的灭菌工具,其一般采用的是波长为254 nm的UVC作为灭菌光源.而UVA(365 nm波长)配合发光二极管(light-emitting diodes,LED)也有明显的杀菌效果.本研究从灭菌能力,照射后细菌的光修复能力和再生长能力以及能耗等方面入手,比较短波长的UVC和长波长的UVA/LED对副溶血性弧菌的灭菌效果.结果显示,UVA/LED比UVC有更强的杀菌能力,且在受到UVA/LED照射后,副溶血性弧菌的再生长明显慢于单纯UVC处理后的细菌;对副溶血性弧菌的光修复酶基因表达水平进行检测发现,UVA/LED照射后副溶血性孤菌三种光修复酶基因的表达水平都无激活现象,而UVC处理后的细菌三种基因表达水平明显升高.我们认为UVA/...

The low pressure mercury lamp is used as a common tool for disinfection, with wavelength 254 nm as light source. Previous results suggested that when connected with light-emitting diodes （LED）, UVA could kill bacterial effectively. In this research, we found that the disinfection effect of UVA/LED was much stronger than that of UVC; meanwhile, the regeneration of Vibrio parahaemolyticus after radiated by UVA/LED was more slowly than that only exposed by UVC. The results showed that photoreactivation did not happen in Vibrio parahaemolyticus a...