Effect of Bactericine as a Treatment for the Control of Listeria monocytogenes in Refrigerated Meat Products

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The aim of this research was to investigate the inhibitory effect of bacteriocin for use as a biological control agent against Listeria monocytogenes in refrigerated meat products. And this bacteriocin was evaluated for their effectiveness as a preservative on pork. The bacteriocin-treated pork was compared with a control pork sample regarding the number of listeria colony count. After 10 days of storage at 4 °C, the population of Listeria monocytogenes was increased from 5.7×105 to 3.7×108 CFU/mL in control samples. In test samples, the population of Listeria monocytogenes underwent a slight increased from 5.7×103 to 6.0×105 CFU/mL. During 10 days of storage, the percentage of growth inhibition ranged from 82.6% to 99.8%, bacteriocin showed their inhibitory effect on Listeria monocytogenes. These results indicated that the studied bacteriocin exhibited bactericidal effect against Listeria monocytogenes strain at refrigerated temperatures, and bacteriocin could be used as antimicrobial agent to preserve the shelf life of refrigerated meat products.

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Advanced Materials Research (Volumes 781-784)

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1322-1327

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September 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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