곡류 및 곡류가공품 중 곰팡이독소 오염도 조사 연구

This study surveyed mycotoxin contamination in grains and grain products, which were purchased from supermarkets and traditional markets from October 2017 to September 2018 in Gwangju (Metropolitan City). A total of 127 samples including adlay, sorghum, millet, rice, oats, barley, buckwheat, corn as grains, and rice flour, buckwheat flour, roasted barley and corn, as grain products were surveyed. The tested mycotoxins were aflatoxin (AFB1, AFB2, AFG1, AFG2), fumonisin (FUB1, FUB2), ochratoxin A (OTA), and zearalenone (ZON). Mycotoxins were analyzed simultaneously with a UPLC-tandem mass spectrometry method. Fumonisin (B1+B2) was detected at the range of 4.8~738.5 μg/kg in 35 samples and zearalenone at 8.4~507.6 μg/kg in 20 samples, respectively. No other mycotoxins were detected. Risk assessment was evaluated by using estimated daily intake (EDI) and provisional maximum tolerable daily intake (PMTDI) in accordance with the Joint FAO/WHO Expert Committee on Food Additives (JECFA). When the hazard index (HI) was expressed as (EDI/PMTDI) × 100, the HI (%) showed in the range of 0.0019~1.9526%. Based on these results, mycotoxin concentrations in the grains and grain products were within safe levels.