对大肠杆菌从塑料地板转移到田间种植的西红和的量化
Autumn R Burnett1, Faith Critzer2, Timothy Coolong1
1Department of Horticulture, University of Georgia, 1111 Miller Plant Sciences, Athens, GA 30602, USA.
Journal of food protection
|January 30, 2025
概括
这项研究量化了从塑料覆盖物到番茄和胡的细菌转移. 对于掉落和垂落的水果,测量了细菌转移率,为生产安全法规提供了数据.
科学领域:
- 农业科学 农业科学
- 食品安全 食品安全
- 微生物学 微生物学
背景情况:
- 美国食品和药物管理局禁止分发与地面接触的水果.
- 番茄和胡在美国东南部的塑料土上种植.
- 垂落的水果与地面接触,而它仍然附着在植物上.
研究的目的:
- 量化细菌从塑料料转移到番茄和胡的转移率.
- 在现场条件下调查掉落和垂落水果的转移.
- 为未来的农产品收获和处理提供监管指导.
主要方法:
- 用无病原性大肠杆菌 (Escherichia coli) GFP 进行注射的塑料覆盖物.
- 果实从不同的高度下降,或让它掉落在土壤上.
- 在美国乔治亚州的现场条件下测量了细菌转移率.
主要成果:
- 落下的水果的平均日志百分比转移在0.01-2.88%之间.
- 垂落水果的平均日志百分比转移在0.15-1.02%之间.
- 没有观察到基于料颜色或接触时间的转移显著差异.
结论:
- 现场环境条件显著影响细菌转移率.
- 这项研究解决了从料到水果中的细菌转移方面的知识差距.
- 结果可以为USFDA关于产品安全和处理实践的法规提供信息.
相关概念视频
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...


