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Evgeny E. Kurdyukov, Olesya P. Rodina, Alexander V. Mitishev, Anastasia S. Fednina, Anna Yu. Nemova
Method
of quantitative determination of the amount of anthocyanins in the raw
materials of Malpighia Emarginata
Abstract
Abstract. The method of quantitative determination of the amount of
anthocyanins in Malpighia Emarginata by direct spectrophotometry is
developed. The analytical maxima of the absorption of anthocyanins in the
fruits of Malpighia Emarginata – 534±2 nm (maximum) – were determined.
The optimal conditions for the extraction of anthocyanins from the raw
materials of this plant are justified (extractant – ethyl alcohol 40%; the
ratio of “raw material-extractant” – 1:50; extraction time 30 minutes; the
degree of grinding of raw materials 1.0 mm).
Key words:Malpighia Emarginata, anthocyanins, cyanidin-3-O-glucoside,
spectrophotometry, fruits
Copyright (C) Chemistry Dept., Moscow State University, 2002
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