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This study focuses on the impact of anthocyanin structures such as 5-glucosidic substitution and aromatic acylation on anthocyanin, colour and stability at various pH values. Two concentrations (0.05 and 0.15 mM) of cyanidin 3-glucoside (1), cyanidin 3-(2''-glucosylglucoside)-5-glucoside (2), and cyanidin 3-(2''-(2 ''' -sinapoylglucosyl)-6''-sinapoylglucoside)-5-glucoside (3) in...
An anthocyanin, 1, with the novel 4-substituted aglycone, 5-carboxypyranopelargonidin, was isolated in small amounts from the acidified, methanolic extract of strawberries, Fragaria ananassa Duch., by preparative HPLC after purification by partition against ethyl acetate, Amberlite XAD-7 and Sephadex LH-20 column chromatography. It was identified mainly by 2D NMR spectroscopy and electrospray LC-MS...
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