V. 的增长V. 在热带黑岩中的parahaemolyticus
Anna C Padovan1, Alison R Turnbull2, Samantha J Nowland1,3
1Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT 0810, Australia.
Pathogens (Basel, Switzerland)
|June 28, 2023
概括
在4°C或13°C的黑岩中,Vibrio parahaemolyticus不会生长,这表明这些温度可以确保的安全. 生长在18°C和25°C之间,因此需要在收获后小心处理.
科学领域:
- 食品安全与微生物学
- 水产养殖和海洋生物学
背景情况:
- 维甲血溶菌是一种机会性病原体,构成全球食品安全风险.
- 黑岩 (BRO) 是澳大利亚热带地区的一个新兴商业物种,易受Vibrio spp.感染. 由于它的温水息地.
- 了解收获后BRO中的Vibrio parahaemolyticus生长对于确保供应安全至关重要.
研究的目的:
- 在各种收获后储存温度下确定黑岩 (BRO) 中Vibrio parahaemolyticus的生长特征.
- 为澳大利亚产业提供数据,为安全储存和运输指南提供信息.
主要方法:
- 从中分离出来的四种Vibrio parahaemolyticus菌株被注射到BRO中.
- 在四种温度下存储: 4°C,13°C,18°C和25°C.
- 在不同的时间点使用计数量定量Vibrio parahaemolyticus水平.
主要成果:
- 在4°C时没有观察到Vibrio parahaemolyticus的生长 (生长率: -0.001 log10 CFU/h).
- 缓慢增长发生在13°C (增长率:0.003 log10 CFU/h),显著增长在18°C (0.032 log10 CFU/h) 和25°C (0.047 log10 CFU/h).
- 最高的人口密度 (5.31 log10 CFU/g) 在116小时后达到18°C;18°C和25°C的增长率没有显著差异,但高于13°C.
结论:
- 黑岩在4°C和13°C的储存被认为是安全的,可以抑制Vibrio parahaemolyticus的生长.
- 在18°C和25°C的温度下,Vibrio parahaemolyticus的生长凸显了收获后需要控制温度的必要性.
- 这项研究为监管机构和澳大利亚产业提供了必要的数据,以建立有效的产品质量和安全指南.
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