TY - JOUR
T1 - Further characterization of foliar flavonoids in Crossostephium chinense and their geographic variation
AU - Uehara, Ayumi
AU - Kitajima, Junichi
AU - Kokubugata, Goro
AU - Iwashina, Tsukasa
N1 - Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2014/2
Y1 - 2014/2
N2 - Foliar flavonoids of Crossostephium chinense in Japan and Taiwan were isolated and further characterized. Eighteen flavonoid aglycones, luteolin, apigenin, hispidulin, chrysoeriol, 5,7,4′-trihydroxy-6,3′,5′- trimethoxyflavone, jaceosidin, cilsimaritin, quercetin 3-methyl ether, axillarin, chrysosplenol-D, cirsiliol, apometzgerin, 5,7,3′-trihydroxy-6, 4′,5′-trimethoxyflavone, luteolin 3′,4′-dimethyl ether, cirsilineol, eupatilin, nepetin and 5,7,3′,4′-tetrahydroxy-6, 5′-dimethoxyflavone, were identified by UV, 1H and 13C NMR spectroscopic, LC-MS and HPLC comparisons with authentic samples. The compounds existed on the leaf surface. Four flavonoid glycosides, quercetin 3,7-di-O-glucoside, quercetin 3-O-rutinoside, luteolin 7-O-glucoside and apigenin 7-O-rutinoside, were also isolated as the intracellular flavonoids. It was shown by HPLC survey that variation of the species' flavonoids occurs among the collection sites.
AB - Foliar flavonoids of Crossostephium chinense in Japan and Taiwan were isolated and further characterized. Eighteen flavonoid aglycones, luteolin, apigenin, hispidulin, chrysoeriol, 5,7,4′-trihydroxy-6,3′,5′- trimethoxyflavone, jaceosidin, cilsimaritin, quercetin 3-methyl ether, axillarin, chrysosplenol-D, cirsiliol, apometzgerin, 5,7,3′-trihydroxy-6, 4′,5′-trimethoxyflavone, luteolin 3′,4′-dimethyl ether, cirsilineol, eupatilin, nepetin and 5,7,3′,4′-tetrahydroxy-6, 5′-dimethoxyflavone, were identified by UV, 1H and 13C NMR spectroscopic, LC-MS and HPLC comparisons with authentic samples. The compounds existed on the leaf surface. Four flavonoid glycosides, quercetin 3,7-di-O-glucoside, quercetin 3-O-rutinoside, luteolin 7-O-glucoside and apigenin 7-O-rutinoside, were also isolated as the intracellular flavonoids. It was shown by HPLC survey that variation of the species' flavonoids occurs among the collection sites.
KW - Aglycone
KW - Asteraceae
KW - Crossostephium chinense
KW - Distribution pattern
KW - Flavone
KW - Flavonol
UR - http://www.scopus.com/inward/record.url?scp=84894419039&partnerID=8YFLogxK
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U2 - 10.1177/1934578x1400900207
DO - 10.1177/1934578x1400900207
M3 - Article
C2 - 24689280
AN - SCOPUS:84894419039
VL - 9
SP - 163
EP - 164
JO - Natural Product Communications
JF - Natural Product Communications
SN - 1934-578X
IS - 2
ER -