Journal
JOURNAL OF APPLIED MICROBIOLOGY
Volume 117, Issue 6, Pages 1709-1720Publisher
WILEY
DOI: 10.1111/jam.12658
Keywords
food-borne pathogens; fumaric acid; inactivation; shelf life; slightly acidic electrolysed water
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Funding
- Korean Ministry of Food and Drug Safety/Livestock Products Sanitation Division through the KFDA [2013-18878]
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AimsTo evaluate synergetic effect of slight acidic electrolysed water (SAEW) and fumaric acid (FA) on inactivation of total viable count (TVC) and Staphylococcus aureus, Listeria monocytogenes, Escherichia coli O157:H7 and Salmonella Typhimurium in fresh beef and to study shelf life and sensory quality of beef. Methods and ResultsInoculated samples was dipped for 1, 3 and 5min and immersed at 25, 40 and 60 degrees C in SAEW, strong acidic electrolysed water (StAEW) and SAWE+FA. Treated meat was air-packaged and stored at 4 or 10 degrees C. During storage, sampling was performed at 2-day intervals for microbiological and sensory changes. TVC was decontaminated at 40 degrees C for 3min by more than 370logCFUg(-1), and examined pathogens were reduced by more than 260logCFUg(-1) with SAEW+FA treatment. This treatment prolonged shelf life of beef meat up to 9 and 7days when stored at 4 and 10 degrees C, respectively. ConclusionThe combined treatment of SAEW+FA showed greater bactericidal effect and prolonged shelf life compared with individual treatments. Significance and impact of the studyCombined treatment of SAEW and FA can be a suitable hurdle technology reducing bacteria in fresh beef, substantially enhancing their microbial safety and decreasing pathogens growth during storage.
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