Conversion of Leucoanthocyanins into the Corresponding Anthocyanidins
- 28 February 1964
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 143 (3609), 954-955
- https://doi.org/10.1126/science.143.3609.954
Abstract
Purified preparations of leucoanthocyanins from several sources were heated in butanol-hydrochloric acid solutions from 50° to 90°C and the rate of production of cyanidin was measured. From the temperature dependence of this rate, the calculated energy of activation was of the order of magnitude of 20,000 calories. The rate-limiting step in this reaction was similar for two preparations tested, and of lower energy for a third, presumably of lower degree of polymerization.Keywords
This publication has 18 references indexed in Scilit:
- Astringency of Persimmons (Diospyros kaki, L.)Nature, 1963
- Zur Kenntnis der Pro‐anthocyanidineEuropean Journal of Inorganic Chemistry, 1961
- Systematik und nomenklatur der flavonoideTetrahedron, 1960
- A study of leucoanthocyanidins of plants—IITetrahedron, 1959
- The phenolic constituents of Prunus domestica. I.—The quantitative analysis of phenolic constituentsJournal of the Science of Food and Agriculture, 1959
- Mechanism of Formation of Anthocyanidins from Leucoanthocyani(di)nsNature, 1959
- Leuko- und Pseudoverbindungen der AnthocyanidineEuropean Journal of Organic Chemistry, 1958
- Some Recent Advances in the Identification of Leuco-Anthocyanins and the Chemistry of Condensed TanninsNature, 1957
- Identification Of Anthocyanidins, Leuco-Anthocyanins and 2 : 3-Dihydroflavonols in Plant TissuesNature, 1957
- 242. Leucoanthocyanins. Part III. Formation of cyanidin chloride from a constituent of the gum of Butea frondosaJournal of the Chemical Society, 1937