Total phenol contents, total flavonoid contents and antioxidant activity of 70% methanol, 70% ethanol and chloroform-methanol (CM, 2:1, v/v) extracts from onion (Allium cepa L.) peels were studied. The IC50 values of DPPH (2,2-diphenyl-1-picrylhydrazyl) radical and ABTS [2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt] radical scavenging activity in 70% ethanol extract were remained to be lowest followed by 70% methanol extract and CM extract. And the total phenol content (113.56±0.86 mg CAE/g), total flavonoid content (49.63 mg QE/g) and ferric reducing antioxidant power value were also found to be the highest. In contrast, 70% methanol extract possessed the strongest antioxidant activity by β-carotene bleaching assay. CM extract displayed the lowest antioxidant activity compared with other extracts. Onion peels exhibited strong antioxidant activity and abundant phytochemicals, which could be used in a various food products to add phytochemicals and promote good health.

식용꽃인 꽃베고니아(Begonia semperflorens ‘Superolympia White’), 토레니아(Torenia fournieri ‘Crown Pink’), 팬지(Viola tricolor ‘Solvetsunny Royal’) 및 펠라고니움(Pelargonium grandiflorum ‘Jessie Jarrett’) 추출물의 총페놀 함량, 전자공여능 및 세포독성에 미치 는 영향을 조사하였다. 에탄올 추출물의 총 페놀함량은 펠라고니움의 경우 531.57mg/100g으로 높게 나타났으 나 토레니아는 30.98mg/100g, 팬지는 14.62mg/100g, 꽃베고니아는 5.77mg/100g으로 낮게 나타났다. 전자공 여능은 꽃베고니아, 토레니아, 팬지의 열수 및 에탄올 추출물은 500g·mL-1에서는 모두 69.4% 이하를 나타 냈으나 펠라고니움의 열수 및 에탄올 추출물은 125g·mL-1에서도 각각 94% 내외를 나타내었다. 세포 생존율은 토레니아와 팬지의 열수 및 에탄올 추출물 처리구에서는 95% 이하를 나타내어 세포사가 일어난 것으로 추정되었다. 히스타민 억제효과는 펠라고니움 추출물의 경우 91% 이상을 나타냈으나 토레니아 추출 물은 51-66%, 팬지 추출물은 14-24%, 꽃베고니아 추 출물은 1~2%의 억제 효과만 나타났다.

The objective of this study was to identify the variation of individual phenol content and antioxidant activity in commercial oyster mushrooms and phellinus mushrooms . The total phenol content varied from 3488.2 to 7161.9 g g-1 in oyster mushroom(Pleurotus spp.). The total phenol content varied from 23390.3 to 26878.3 g g-1 in phellinus mushroom, containing about from four times to seven times more than oyster mushrooms. Among the seventy nine oyster mushroom varieties examined, Bupyeongsoyeob had the highest total phenol content and Keunneutari 1 had the lowest total phenol content. Most of king oyster mushroom(Pleurotus eryngii) varieties and ferula oyster mushroom(Pleurotus ferula)had tendency of low total phenol content. EDA(Electron Donating ability) using DPPH varied from 9.3 to 73.6% in according to oyster mushroom varieties. Most of king oyster mushroom had low antioxidant activity. We believe that the content of functional substances like total phenol content and the antioxidant activities in commercial oyster and phellinus mushrooms could be improved and such varieties strengthed might be selected for the utilization of future breeding resources, based from the results of our study.

최근에 유기 재배된 과실이 관행재배와 비교해서 건강관련 물질과 관련된 화합물이 다량 분포된다는 연구와 주장이 제기되어 왔지만, 국내에서는 두 가지 재배방법에 따른 과실품질을 분석한 연구는 미비한 실정이다. 본 연구는 유기농과 관행으로 재배 된 배 '신고'의 과실품질과 폴리페놀 및 항산화 활성을 조사하였다. 처리는 키틴 복합퇴비+키틴 액비(구역 A), 키틴 복합퇴비+적외선으로 처리 된 키틴 액비(구역 B), 그리고 관행재배 시스템(구역 C와 D)으