Extractive substances ofLarix dahurica
- 28 Downloads
The quantitative determination of quercetin and dihydroquercetin in the total flavonoids ofLatrix dahurica has been effected by the use of thin-layer chromatography on Kapron for separating the mixture with subsequent elution of the spots and colorimetry of the eluates obtained. The methanol-dimethylformamide (1:1) system was used as the eluate. It has been found that the flavonoids of the heartwood ofLatrix dahurica contain a predominating amount, 69% of dihydroquercetin, the amount of quercetin being 11%.
KeywordsFlavonoid Quercetin Aluminum Chloride Dihydro Total Flavonoid
Unable to display preview. Download preview PDF.
- 1.N. A. Tyukavkina, K. I. Lapteva, and V. A. Pentegova, KhPS [Chemistry of Natural Compounds] 278, 1967.Google Scholar
- 2.G. A. Fedorova and V. A. Devyatnin, Trudy Vsesoyuznogo n. -i. vitaminnogo in-ta,6, 156, 1959; I. Davidek, Biokhim.,26, 93, 1961; V. A. Bandyukova, in collection: Proceedings of the First All-Russian Congress of Pharmacists [in Russian], Moscow, 227, 1964.Google Scholar
- 6.J. Davidek and Z. Prochazka, Coll.,26, 2947, 1961.Google Scholar