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KMID : 1024620050250040513
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Food Science of Animal Resources
2005 Volume.25 No. 4 p.513 ~ p.520
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Growth Inhibitory Effect of Grapefruit Seed Extract on Foodborne Pathogens in kanjang Paste and kochujang Paste
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Lee Yong-Wook
Choi Jae-Hoon
Yoon Wan-Ho
Kim Chang-Han
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Abstract
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The purpose of this study is to measure the total bacterial count, the number of foodborne pathogens and the change of PH by the addition of grapefruit seed extract (GFSE) in kanjang Paste and kochujang paste, respectively. The change of inoculated foodborne pathogens such as Salmonella enteritidis IFO 3313, Staphlococcus aureus IFO 12732, Listeria monocytogenes ATCC 19115, Escherichia coli O157:H7 ATCC 43894 in kanjang Paste and kochujang paste were measured for 14 days at the storage temperatures of . In kanjang paste, the changes of pH were not showed between the control and the addition of GFSE at . However, pH were decreased about 2 pome in the control and the addition of GFSE 250 ppm at . In the addition of GFSE 500 ppm, pH decreased about 1.2 points at . In the growth-inhibitory effect on foodborne pathogens, when comparing with the con01 and the addition of GFSE 250 ppm and 500 ppm the addition of GFSE was decreased more than the control in kanjang paste at storage temperatures of . Otherwise, there were no differences of the number of foodborne Pathogens in kochujang paste as additions. But in kochujang paste stored at storage temperatiues of there were differences of the number of foodborne pathogens. When kochujang paste stored at least for 10 days, tested all foodborne Pathogens were not detected.
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KEYWORD
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kanjang paste, kochujang paste, foodborne pathogens, grapefruit seed extract (GFSE)
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