Isolation and Identification of Polymethoxyflavones from the Hybrid Citrus, Hallabong
- Authors
- Han, Saem; Km, Hye Min; Lee, Jeong Min; Mok, So-Youn; Lee, Sanghyun
- Issue Date
- Sep-2010
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Hallabong ([Citrus unshiu x C. sinensis] x C. reticulata); dekopon; polymethoxyflavone; quantitative analysis; HPLC
- Citation
- JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, v.58, no.17, pp 9488 - 9491
- Pages
- 4
- Journal Title
- JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
- Volume
- 58
- Number
- 17
- Start Page
- 9488
- End Page
- 9491
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/22203
- DOI
- 10.1021/jf102730b
- ISSN
- 0021-8561
1520-5118
- Abstract
- Seven polymethoxyflavones (PMFs) were isolated from the dried peels of hallabong, the hybrid Citrus, by a repeated column chromatography. The structures of PMFs were identified as 5,6,7,3',4'-pentamethoxyflavone (1), 6,7,8,3',4'-pentamethoxyflavone (2), 3-hydroxy-5,6,7,4'-tetramethoxyflavone (3), 5,6,7,8,3',4'-hexamethoxyflavone (4), 3,6,7,4'-tetramethoxyflavone (5), 3,5,6,7,8,3',4'-heptamethoxyflavone (6), and 5,6,7,8,4'-pentamethoxyflavone (7) using H-1 and C-130 NMR in combination with mass spectrometry. Among these compounds, 5 was isolated for the first time from nature. The content of PMFs 1-7 in hallabong was determined by HPLC-UV. The major PMFs of hallabong are 5 in the dried peels (15.4 mg/g) and 7 in the dried leaves (12.2 mg/g).
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