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버섯 재배용 배지 재료로 수입한 농업부산물에서 중금속, 잔류농약, 영양성분 조사
김준영,이근식,이찬중,김성환,Kim, Jun Young,Lee, Geun Sick,Lee, Chan Jung,Kim, Seong Hwan 한국환경농학회 2017 한국환경농학회지 Vol.36 No.3
BACKGROUND: For the food safety of cultivated mushroom, information on the safety of agricultural by-products imported as medium substrates for mushroom cultivation is urgently needed. Therefore, this study was performed to detect the presence of heavy metals, residual pesticides, and nutrient component in the imported medium substrates. METHODS AND RESULTS: Six kinds of medium substrates imported from nine countries from 2015 to 2017 were investigated. A mercury analyzer MA-2000 and an inductively coupled plasma spectrometer OPTIMA 7000DV were used to analyze mercury, lead, arsenic, copper, nickel and cadmium. All of these heavy metals were detected at lower level than heavy metal tolerance standard level of by-product fertilizer in Korea. When 246 kinds of residual pesticides were examined by GC and HPLC, imidacloprid, thiamethoxam and carbendazim were detected from Egyptian beet pulp, Indian cottonseed meal and cottonseed hull, respectively. The content of nutrient components (water, crude ash, crude fat, crude protein and crude fiber) varied among imported countries and the medium substrates. CONCLUSION:The presence of heavy metals and residual pesticides in imported medium substrates for mushroom cultivation was confirmed. For the safe production of mushroom, this study shows that imported medium materials for mushroom cultivation need to be managed through continuous monitoring.
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안금란 ( Geum Ran Ahn ),김보영 ( Bo Young Kim ),이근식 ( Geun Sick Lee ),현민우 ( Min Woo Hyun ),이찬중 ( Chan Jung Lee ),김성환 ( Seong Hwan Kim ) 한국균학회 2016 韓國菌學會誌 Vol.44 No.4
During a survey of the activities of fungi in steamed sweet potato, stored garlic, agricultural by-products for mushroom cultivation media, and pinewood chips from a pinewood nematode-infected tree, numerous fungal samples were isolated and identified. This study identified five species that have not been previously reported in Korea, namely Geomyces pannorum, Neopestalotiopsis javaensis, Penicillium allii, Penicillium chermesinum, and Ophiognomonia setacea. For all identified species, the cultural features of colonies formed on growth media, their morphological characteristics observed by a light microscope, and their molecular phylogenetic relationships based on nucleotide sequences of the internal transcribed spacer rDNA region or calmodulin gene were described.
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