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도시텃밭과 옥상정원에서 재배되는 농산물의 생물학적 안전성 조사
김진원(Jin-Won Kim),유용만(Yong-Man Yu),나원석(Won-Seok Na),Enkhjargar Baljii,최인욱(In-Wook Choi),윤영남(Young-Nam Youn),이영하(Young-Ha Lee) 한국원예학회 2014 원예과학기술지 Vol.32 No.3
Urban farming supplies emotional stability and fresh vegetables to participating persons, however, no information regarding the biosafety of agricultural products from urban farming is available. Here, we collected 260 samples of Chinese cabbages and lettuce from 4 u rban c ommunity g ardens a nd 6 r oof gardens in S eoul from September t hrough October 2012, and monitored the microbiological and parasitological contamination quantitatively and/or qualitatively. The mean counts of total aerobic bacteria and coliforms were 6.1 ± 0.8 ? CFUㆍg<SUP>-1</SUP>( range, 5.4 ± 0.6~7.1 ± 0.8 ? CFUㆍg<SUP>-1</SUP>) and 4.0 ± 0.7 ? CFUㆍg<SUP>-1</SUP>(range, 2.3 ± 0.6~6.1 ± 0.9 ? CFUㆍg<SUP>-1</SUP>), respectively. Coliforms were detected on 59.6% among 260 vegetable samples. There were no significant differences in the contamination levels of total aerobic bacteria and coliforms between the Chinese cabbages and lettuce, whereas both levels of vegetables from urban community gardens were higher than those of roof gardens (p > 0.05). Escherichia coli was isolated at 3.1% among whole vegetables, and contamination level was 1.5 ± 0.2 ? CFUㆍg<SUP>-1</SUP>. Among foodborne pathogens, Staphylococcus aureus was detected in 1.5%, however, Salmonella spp., Listeria monocytogenes and E. coli O157:H7 were not detected on any of the vegetable samples. We also found undefined parasite eggs from two samples of Chinese cabbages (0.8% of total vegetables we tested). From these study, we found the presence of microbial contamination of agricultural products from urban farming, thus we need further concern to improve the biosafety during production of agricultural products.