肉作物中Campylobacter jejuni的生存时间
Mari Nishii1, Masaharu Yasutomi1
1Kyoto Prefecture Agriculture Experiment Station, Ayabe-Shi 623-0221, Japan.
The journal of poultry science
|June 3, 2024
概括
被米养的肉小显示出增强的作物杀菌活性. 大多数Campylobacter jejuni在40分钟内在作物中死亡,这表明病原体传播减少.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 微生物学 微生物学
- 食品安全 食品安全
背景情况:
- 乳杆菌菌种类. 乳杆菌种类. 它可以抑制Campylobacter spp. 在体外,但这种效应在作物中未得到证实.
- 之前的研究表明,米饮食增加肉作物中的食物停留时间,可能增强杀菌活性.
研究的目的:
- 评估对Campylobacter spp. 的杀菌活性. 在肉作物中.
- 为了确定作物中Campylobacter jejuni的生存时间和死亡动力学.
主要方法:
- 坎比洛巴克特 (Campylobacter jejuni) 和二氧化 (TiO2) 悬浮剂被注射在肉中,它们被食基于米的食.
- 在20分钟间隔抽取作物含量样本,以评估TiO2残留率和C. jejuni存活率.
- 计算了C. jejuni的生存时间和死亡动力学.
主要成果:
- 随着时间的推移,作物中的二氧化 (TiO2) 残留比率下降,在60分钟内,残留率为57%.
- 坎比洛巴克特 (Campylobacter jejuni) 生存率在40分钟时为11%,在60分钟时为1%,在80分钟时无法检测到.
- 细菌死亡发生在注射后30到40分钟之间,平均存活时间为37.1分钟.
结论:
- 大多数接种的C. jejuni在到达下一个消化部分之前就在作物中死亡.
- 种植物对C. jejuni具有显著的杀菌活性,特别是在食米的鸟类中.
- 在作物中C. jejuni存活超过40分钟不太可能,这表明病原体消除的关键窗口.
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