食物传播病原体在低酒精和无酒精工艺酒中的存活率
Mario Çobo1, Ann Charles-Vegdahl1, Kaylyn Kirkpatrick2
1Department of Food Science, Cornell AgriTech, Geneva, NY 14456, USA.
Journal of food protection
|October 21, 2023
概括
无酒精酒可能会支持病原体的生长,与低酒精选择不同. 储存温度是防止这些创新的饮料中病原体存活的关键.
科学领域:
- 食品微生物学 食品微生物学
- 饮料科学 饮料科学
- 食品安全 食品安全
背景情况:
- 传统酒具有抗微生物特性,可以抑制病原体的生长.
- 低酒精和无酒精 (NA) 酒 (ABV<2.5%和<0.5%) 可能缺乏这些保护因素.
- pH,乙醇和储存条件的变化可能会影响NA酒的微生物稳定性.
研究的目的:
- 评估pH值,储存温度和乙醇度对低酒精和无酒精酒中食物传播病原体生存的影响.
- 评估低酒精度的创新酒产品的安全性.
- 确定在NA酒生产中确保微生物安全的关键控制点.
主要方法:
- 无酒精和低酒精酒样本根据pH值和乙醇度进行了调整.
- 样品被接种了大肠杆菌O157:H7,S. enterica和L. monocytogenes的尾酒.
- 在4°C和14°C的温度下,对63天的微生物生长进行了监测.
主要成果:
- 无酒精酒在14°C时支持大肠杆菌O157:H7和S. enterica的生长,但在4°C时不支持.
- 在所有测试条件下,L. monocytogenes的存活率有限.
- 储存温度显著影响了病原体的生存,而pH的影响最小.
结论:
- 与低酒精酒相比,非酒精酒对病原体生存的风险更高.
- 冷藏 (4°C) 对于防止NA酒中病原体的扩散至关重要.
- 制造商必须实施针对NA酒生产量身定制的强有力的食品安全计划.
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