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KMID : 0380620090410040392
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Korean Journal of Food Science and Technology
2009 Volume.41 No. 4 p.392 ~ p.398
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Microbiological Safety Assessment of a Perilla Leaf Postharvest Facility for Application of a Good Agricultural Practices (GAP) System
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Kim Kyeong-Yeol
Nam Min-Ji
Lee Hyo-Won
Shim Won-Bo
Yoon Yo-Han
Kim Se-Ri
Kim Doo-Ho
Rhu Jae-Gee
Hong Moo-Ki
You Oh-Jong
Chung Duck-Hwa
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Abstract
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This study identified risk factors of cross-contamination of foodborne pathogens and established a goodagricultural practice (GAP) system for an agricultural products processing center (APC) for perilla leaves. All sampleswere collected before and after a standard work shift at the APC, while perilla leaves were also collected after each stepin the APC. In addition, the workers and their surroundings were sampled by swabbing. The total plate count (TPC) andcoliform count in the water samples increased significantly (p<0.05) to 3.36 and 1.73 log CFU/mL after work,respectively. However, no Escherichia coli and Listeria monocytogenes were detected. The bacterial populations of theworkers and their surroundings did not differ significantly (p≥0.05) before and after work. However, Staphylococcusaureus (<1.66 log CFU) was detected at a high rate (13-50%) in the basket, packing table, gloves and cloth. Althoughperilla leaves passed through the washing steps, the TPC and coliform bacterial populations on the final products werehigher (p≥0.05) than those of unwashed perilla leaves, which indicates that the washing system was not functioningproperly. Accordingly, a GAP system with a better washing system should be employed at this facility.
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KEYWORD
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good agricultural practices, agricultural products processing center, perilla leaf, safety
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