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KMID : 0881720180330040255
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Journal of Food Hygiene and Safety
2018 Volume.33 No. 4 p.255 ~ p.258
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Antimicrobial Effect of Phytochemicals to Listeria monocytogenes Isolated from Slaughterhouses
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Kim Hye-Ji
Oh Hye-Min
Lee Hee-Young
Kim Se-Jeong
Ha Ji-Myeong
Lee Jee-Yeon
Choi Yu-Kyung
Lee Ye-Won
Kim Yu-Jin
Yoon Yo-Han
Lee Soo-Min
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Abstract
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The objective of this study was to investigate the inhibitory effect of natural antimicrobials on Listeria monocytogenes isolated from Korean slaughterhouses. A mixture of 15 strains of L. monocytogenes at low (3 Log CFU/mL) or high (7 Log CFU/mL) concentration was exposed to various extracts (grapefruit seed extract, citrus fruit extract, ginger extract, pear extract, Japanese apricot concentrate, balloon flower extract, jujube extract, and omija extract) at 0.001-4.0 μg/mL. Ginger extract, pear extract, Japanese apricot concentrate, balloon flower extract, jujube extract, or omija extract showed no antimicrobial effects on high-concentration of L. monocytogenes (7 Log CFU/mL). However, grapefruit seed extract and citrus fruit extract showed antibacterial effects against L. monocytogenes at 3 and 7 Log CFU/mL with MBCs of 0.001 and 0.002 μg/mL, respectively. These results indicate that grapefruit seed extract and citrus fruits extract can be used to control L. monocytogenes as natural antimicrobials.
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KEYWORD
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Listeria monocytogenes, Antimicrobial effect, Grapefruit seed extract, Citrus fruits extract, Slaughterhouses
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