Chemistry of Natural Compounds, Vol. 33, No. 1, 1997 POLYPHRNOLS OF THE FRUITS OF SOME VA.RIETIES OF POMEGRANATE GROWING IN UZBElCI~TAN S. M. Mavlyanov, Sh. Yu. lxlambekov, A. K. Karimdzhanov, UDC 547.982/83/84 and A. I. l.qma|lov Continuing a search for promising tannide-bearing plants [1-3] with the aim of using them to produce drugs and high- quahty tanning agents, we have investigated the polyphenols of the fruits of several varieties of Punica granatum (Kazaki, Shirindona, Aehchikdona, Kai, Kizil) growing on the territory of Uzbekistan, By a method developed earlier , from the peel of pomegranates of the Kazaki variety we isolated ethyl acetate and butanol fractions of the total polyphenols (2.9% and 6.8%, respectively, of the weight of the raw material). Their tannlde contents, determined by the VEM method , were 74 and 89 %, respectively. By means of two-dimensional PC in the solvent systems butan- 1 -oi - acetic acid- water (40:12:28) and 2 % acetic acid it was established that the ethyl acetate extract contained 11 polyphenols, and the butanol extract seven. The ethyl acetate fraction was first separated on a column of rawhide powder into fractions soluble in water, in acetone, and in aqueous acetone. It was
Chemistry of Natural Compounds – Springer Journals
Published: Nov 15, 2005
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