Buckwheat (Fagopyrum esculentum), which is a traditional Korean crop, has been known as a health food due to its rich nutrition. This study was conducted to evaluate the change in flavonoid content of flowers and seeds during post-flowering growth of Korean tartary buckwheat variety ‘Hwanggeummiso’, with the aim of providing basic data for the development of functional food and feed additive. Tartary buckwheat took 69 and 99 days from the sowing date to reach the flowering and maturity stages, respectively. As a result of examining the flavonoid components of each part of tartary buckwheat, chlorogenic acid, rutin, and isoquercitrin of flowers increased from the flowering period on 22 May (0 days after flowering) to 42 days after flowering, while quercetin increased until 21 days after flowering and then decreased thereafter. In seeds, chlorogenic acid, rutin, and isoquercitrin were most abundant at the time of seed-bearing on 14 days after flowering, and showed a decreasing tendency thereafter. On the other hand, quercetin showed a tendency to increase until 21 days after flowering and then decrease. Overall, the flavonoid content was higher in flowers than in seeds, with rutin being particularly prominent. Based on this, the possibility as food materials and feed additives was confirmed using buckwheat produced in Korea.

본 연구는 딸기에서 발생하는 흰가루병 방제에 사용되는 살균제의 잔류시험을 수행하고 회귀방정 식 및 생물학적 반감기를 산출하여 한국과 일본, Codex의 잔류허용기준에 근거한 농약의 사용 및 안전한 농산물 생산에 기여하고자 수행되었다. 딸기재배 중 흰가루병 방제용 주요 살균제 boscalid, kresoxim-methyl, pyraclostrobin, pyrimethanil을 각 농약의 안전사용기준에 따라 기준량 1회 살포 후 1, 3, 5, 7, 9, 11, 13일에 딸기 시료를 채취하여 QuEChERS법을 이용하여 추출하고, NH2 SPE 카 트리지로 정제하여 HPLC/DAD로 분석하였다. 시험농약의 검출한계 및 정량한계는 4성분의 농약에서 모두 0.01과 0.03mg/kg이었으며, 평균회수율은 92.9~99.2%, 상대표준편차는≤5%로 산출되었다. 딸기 중 boscalid, kresoxim-methyl, pyraclostrobin, pyrimethanil의 생물학적 반감기는 기준량처리 시 각각 6.2, 4.0, 6.1, 6.6일로 나타났다. 이러한 결과로, 시설재배지 딸기 흰가루병 방제를 위해 사용되는 살균제의 안전 사용을 통해 국내 및 주요 수출국가의 MRL을 초과하지 않는 안전한 딸기를 생산하는데 기여할 것으로 기대된다.