在菜上消毒Clostridioides difficile,使用以epigallocatechin为基础的抗菌溶液和二酸盐消毒
Melike Nur Tosun1, Gizem Taylan Yalcın1, Gizem Korkmazer1
1Canakkale Onsekiz Mart University Engineering Faculty Food Engineering, Canakkale 17020, Turkey.
International journal of food microbiology
|June 26, 2023
概括
基于表甲基酸盐 (EGCG) 的天然消毒剂有效地减少了菜上的Clostridium difficile和其他微生物. 这些天然洗方法为改善蔬菜微生物质量而不会影响颜色的二提供了有希望的替代品.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 农业科学 农业科学
背景情况:
- 像菜这样的新鲜产品被病原体 (如Clostridium difficile) 污染,对公众健康构成重大风险.
- 传统的消毒剂,如低化物 (NaOCl) 可能是有效的,但在产品质量和环境影响方面可能存在缺点.
- 开发新鲜产品的有效和安全的抗微生物洗解决方案对于食品安全至关重要.
研究的目的:
- 研究一种新型天然消毒剂溶液 (NDS) 的有效性,该溶液含有表甲基酸盐 (EGCG),可对菜上的 Clostridium difficile 有效.
- 为了评估NDS和绿茶提取物-酸 (GTE-AA) 对总有氧性介质性细菌 (TAMB) 和肠杆菌群水平的影响.
- 评估这些洗溶液对菜颜色,质地和醇总含量的影响.
主要方法:
- 新鲜的菜叶被C. difficile接种,并用不同度和接触时间的NDS (EDTA,,EGCG) 和GTE-AA.洗净.
- 效果与低酸盐 (NaOCl) 和自来水控制器进行了比较.
- 量化了微生物负载的减少 (C. difficile,TAMB,Enterobacteriaceae) 的情况.
- 分析了菜颜色,质地和醇总含量的变化.
主要成果:
- 在2xMIC和4xMIC度的NDS显著抑制了C. difficile,减少了2.112.32日志的负载.
- 低化 (50ppm 15分钟) 显示了最大的C. difficile减少 (2.88日志).
- NDS和GTE-AA有效地降低了TAMB (分别为3.213.66日志和2.273.08日志) 和肠杆菌 (NDS为2.58日志).
- NaOCl在Enterobacteriaceae (4日志) 中显示出更大的减少,但导致了显著的质地降解.
- 在治疗过程中没有观察到菜颜色的显著变化.
结论:
- 基于epigallocatechin的洗溶液有效地从菜中去除C. difficile,从而有可能减少环境污染.
- 在提高新鲜蔬菜的微生物质量方面,NDS和GTE-AA是基消毒剂的可行替代品.
- 虽然NaOCl在微生物减少方面非常有效,但基于EGCG的解决方案在保持菜质地方面提供了更好的配置.
相关概念视频
Hand hygiene
3.4K
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Hand washing...
3.4K
Cleaning, Sterilization, and Disinfection
7.2K
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
7.2K
Methods of Sterilization II: Chemical Methods
6.6K
In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
6.6K
Chemical Agents for Microbial Control
141
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
141
Methods for Controlling Microbial Growth
169
Microbial growth control refers to various methods employed to inhibit, reduce, or eliminate microorganisms to ensure safety and hygiene across different settings. These methods are categorized based on the target environment and the level of microbial control required.Biocides are versatile agents designed to control microorganisms by either inhibiting their growth or outright killing them. These agents work through various physical, chemical, mechanical, or biological mechanisms. The...
169
Physical Methods for Controlling Microbial Growth: Radiation and Filtration
138
Radiation and filtration are essential tools for microbial control, targeting microorganisms through distinct mechanisms. Radiation eliminates microbes by damaging their DNA, either killing them or inhibiting their growth. Based on wavelength, radiation is classified into two types: nonionizing and ionizing radiation.Non-ionizing radiation, such as UV radiation (200–400 nm), is absorbed by DNA, causing defects that effectively disinfect surfaces, air, and water, including safety cabinets.
138


