• Korean Journal of Plant Resources
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• v.8 no.1
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• pp.63-70
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• 1995

Many higher fungi were collected at Mt. Manduck, Mt. Duckwoo and Mt Jiri from June, 1990 to October, 1991. these higher fungi were identified. According to the resulting, following genus and species are newly to Korea : genus of Strobilurus and species of Strobilurus oshimae, Mycena chlorophos, Marasmius pulcherripos, Pholiota astragalina, cortinarous subedibutrs and Boletellus schinchanius.

• Korean Journal of Plant Resources
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• v.9 no.1
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• pp.31-39
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• 1996

Many higher fungi were collected at MI.Moak Provincial Park (Chonlabuk-Do), Mt.Pangtae(Kangwon-Do) and Byunsan Pennisula National Park from April. 1995 to October, 1995. These higher fungi were identified.According to the results, these species were newly to Korea: Laccaria ohiellsis, Mycef1a clavularis. M.acicula. Marasmius ramealis. M.calopus, Strobilurus esculefltus, Agrocybe sphaleromorpha and Corlinarius fasciatus.

• Journal of Food Hygiene and Safety
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• v.37 no.6
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• pp.373-384
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• 2022

Fluoxastrobin a fungicide developed from Strobilurus species mushroom extracts, can be used as an effective pesticide to control fungal diseases. In this study, we optimized the extraction and purification of fluoxastrobin according to its physical and chemical properties using the QuEChERS method and developed an LC-MS/MS-based analysis method. For extraction, we used acetonitrile as the extraction solvent, along with MgSO₄ and PSA. The limit of quantitation of fluoxastrobin was 0.01 mg/kg. We used 0.01, 0.1, and 0.5 mg/kg of five representative agricultural products and treated them with fluoxastrobin. The coefficients of determination (R²) of fluoxastrobin and fluoxastrobin Z isomer were > 0.998. The average recovery rates of fluoxastrobin (n=5) and fluoxastrobin Z isomer were 75.5-100.3% and 75.0-103.9%, respectively. The relative standard deviations (RSDs) were < 5.5% and < 4.3% for fluoxastrobin and fluoxastrobin Z isomer, respectively. We also performed an interlaboratory validation at Gwangju Regional Food and Drug Administration and compared the recovery rates and RSDs obtained for fluoxastrobin and fluoxastrobin Z isomer at the external lab with our results to validate our analysis method. In the external lab, the average recovery rates and RSDs of fluoxastrobin and fluoxastrobin Z isomer at each concentration were 79.5-100.5% and 78.8-104.7% and < 18.1% and < 10.2%, respectively. In all treatment groups, the concentrations were less than those described by the 'Codex Alimentarius Commission' and the 'Standard procedure for preparing test methods for food, etc.'. Therefore, fluoxastrobin is safe for use as a pesticide.