Enhancing blueberries' safety: antimicrobial effects of alkyltrimethylammonium bromide against foodborne pathogens

被引:0
|
作者
Hussain, Syed Ammar [1 ]
Sarker, Majher, I [2 ]
Jin, Tony Z. [1 ]
机构
[1] USDA, Agr Res Serv, Eastern Reg Res Ctr, Microbial & Chem Food Safety Res Unit, 600 E Mermaid Lane, Wyndmoor, PA 19038 USA
[2] USDA, Agr Res Serv, Eastern Reg Res Ctr, Sustainable Biofuels & Coprod Res Unit, 600 E Mermaid Lane, Wyndmoor, PA 19038 USA
关键词
blueberries; alkyltrimethylammonium bromide (ATMB); quaternary ammonium compounds (QACs); food safety; microbial decontamination; Escherichia coli O157:H7; Salmonella enterica; Listeria monocytogenes; antimicrobial efficacy; ESCHERICHIA-COLI; CHLORINE DIOXIDE; LISTERIA-MONOCYTOGENES; DECONTAMINATION; EFFICACY; OUTBREAK; QUALITY;
D O I
10.1093/lambio/ovaf042
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The contamination of fresh produce, including blueberries, with pathogenic microorganisms poses a significant public health risk. This study assessed the efficacy of alkyltrimethylammonium bromide (ATMB), a quaternary ammonium compound, in reducing microbial loads on blueberries. The antimicrobial activity of ATMB was tested against Escherichia coli O157:H7, Salmonella enterica, and Listeria monocytogenes at varying concentrations (750 and 1500 ppm) and exposure times (1, 5, and 10 min). Results showed that reductions in microbial loads were dependent on both the concentration of ATMB and exposure time. The greatest reductions of 6.7 log CFU ml(-1) (where CFU stands for colony-forming units) for Escherichia coli O157:H7, 5.1 log CFU ml(-1) for S. enterica, and 4.9 log CFU ml(-1) for L. monocytogenes were observed at 1500 ppm for 10 min. These findings demonstrate the potential of ATMB as an effective antimicrobial agent for the decontamination of blueberries, thereby enhancing food safety and protecting consumers.
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页数:6
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