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Title:

Isolation and structure elucidation of highly antioxidative 3,8''-linked biflavanones and flavanone-C-glycosides from Garcinia buchananii bark

Document type:
Zeitschriftenaufsatz
Author(s):
Stark, Timo D.; Matsutomo, Toshiaki; Lösch, Sofie; Boakye, Paul A.; Balemba, Onesmo B.; Pasilis, Sofie P.; Hofmann, Thomas
Abstract:
The aim of this study was to identify antioxidants from Garcinia buchananii bark extract using hydrogen peroxide scavenging and oxygen radical absorbance capacity (ORAC) assays. LC-MS/MS analysis, 1D- and 2D-NMR, and circular dichroism (CD) spectroscopy led to the unequivocal identification of the major antioxidative molecules as a series of three 3,8''-linked biflavanones and two flavanone-C-glycosides. Besides the previously reported (2R,3R,2''R,3''R)-naringenin-C-3/C-8'' dihydroquercetin link...     »
Journal title:
Journal of Agricultural and Food Chemistry
Year:
2012
Journal volume:
60
Journal issue:
8
Pages contribution:
2053--2062
Fulltext / DOI:
doi:10.1021/jf205175b
Print-ISSN:
0021-8561
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