양파(Allium cepa L.) 유전자원의 Flavonol 배당체 조성 및 함량

• 영문명: The Compositions and Contents of Flavonol Glycosides in Onion (Allium cepa L.) Germplasm
• 발행기관: 한국작물학회
• 저자명: 이정로(Jung-Ro Lee) 이민기(Min-Ki Lee) 김헌웅(Heon-Woong Kim) 이성현(Sung-Hyeon Lee) 이영민(Young-Min Lee) 장환희(Hwan-Hee Jang) 황경아(Kyung-A Hwang) 곽재균(Jae-Gyun Gwag) 고호철(Ho-Cheol Ko) 김정봉(Jung-Bong Kim) 조진웅(Jin-Woong Cho)
• 간행물 정보: 『한국작물학회지』제59권 제3호, 385~389쪽, 전체 5쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2014.09.30

영문 초록

Flavonols as a major kind of plant secondary metabolites are known for health-promoting compounds in onions (Allium cepa L.). The objectives of this study are to determine profiles of flavonol glycosides in different 75 onion accessions. A total of five flavonols (quercetin 3,4 - diglucoside, Q34 diG; quercetin 3-glucoside, Q3G; quercetin 4 -glucoside, Q4 G; isorhamnetin 4 -glucoside, I4 G; quercetin, Q) were identified from onion accessions. In positive ion mode using LC-ESI-MS, individual flavonols were confirmed from one and two glycosylation binding with aglycone such as quercetin and isorhamnetin. Total flavonol contents were distributed in white onion (range of 0.18-6.47 mg/g DW) and purple onion accessions (range of 2.39-6.47 mg/g), respectively. The mean of flavonol contents in purple onion (4.41 mg/g) showed 1.4-fold higher than white onion (3.23 mg/g). The Q34 diG and Q4 G were considered as the major compounds of flavonol glycosides in onion accessions.

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키워드

Allium cepa L. onion accessions flavonol glycosides quercetin LC-ESI-MS