Obtaining Anthocyanidin Chlorides from Larch and Fir Bark
VLADIMIR A. LEVDANSKY, NATALIA I. POLEZHAEVA, ANNA I. BUTYLKINA and BORIS N. KUZNETSOV
Institute of Chemistry and Chemical Technology, Siberian Branch of the Russian Academy of Sciences,
Ul. K. Marksa 42, Krasnoyarsk 660049 (Russia), E-mail: bnk@icct.krsk.infotel.ru
Pages: 315-320
Abstract
The effect of the concentration of hydrochloric acid and exposure time on the yield of anthocyanidin dyes obtained from larch and fir bark is investigated by means of photometry. Total mass fraction of anthocyanidin compounds and the fraction of these compounds present in bark in the bound state are determined. Kinetic parameters of the process of obtaining anthocyanidin chlorides from larch and fir bark are determined.
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