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KMID : 0881720160310020099
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Journal of Food Hygiene and Safety
2016 Volume.31 No. 2 p.99 ~ p.106
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Investigation of Microbial Contamination in Liriope platyphylla at Post Harvest Environments
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Kim Yeon-Rok
Ha Ji-Hyoung
Kim Se-Ri
Kim Won-Il
Ryu Song-Hee
Kim Hwang-Yong
Park Young-Chun
Kim Kyeong-Cheol
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Abstract
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This study was aimed to assess microbiological contamination level of Liriope platyphylla farms (A, B, and C) located in Cheongyang, Chungnam province. Specimens sampled from those farms and L. platyphylla tuberous roots were assessed for sanitary indication bacteria such as total aerobic bacteria, coliforms, and Escherichia coli and pathogenic bacteria such as Escherichia coli O157:H7, Listeria monocytogenes, Salmonella spp., Staphylococcus aureus and Bacillus cereus, quantitatively and qualitatively. As a result, those farms are not contaminated by E. coli O157:H7, L. monocytogenes, Salmonella spp., at all. And S. aureus was only found qualitatively from workers’ gloves at a farm. As a whole, those farms (soil, harvest container, harvester, cleanser, washing water and tray) were maintained in a low level of microbiological contamination. However a cleanser was contaminated by coliforms (4.35 log CFU/100 cm2), and it is required to improve farm hygiene. Microbiological contamination level of L. platyphylla tuberous root was decreased in the postharvest process including washing and drying.
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KEYWORD
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Liriope platyphylla, microbial contamination, medicinal crop
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