Phenolic Composition and Content of Representatives of the Genus Spiraea L. Under the Conditions of Industrial Pollution in Novosibirsk
E. A. KARPOVA, E. P. KHRAMOVA
Central Siberian Botanical Garden SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Keywords: Spiraea media, S. chamaedryfolia, S. hypericifolia, flavonoids, quercetin, kaempferol, phenolic acids
Abstract
The composition and content of groups of phenolic compounds (free flavonol aglycones, flavonol glycosides, free and bound phenolic acids, hydroxycinnamic acids and their esters) and individual components (quercetin, kaempferol, rutin, hyperoside, isoquercitrin, avicularin, gallic, protocatechuic, chlorogenic, p-coumaric, o-coumaric and cinnamic acids) in the leaves of Spiraea media Fr. Schmidt, S. chamaedryfolia L. and S. hypericifolia L. growing in Novosibirsk in the areas with high and background levels of industrial pollution were studied. The differences in the phenolic composition and content were revealed. Total phenolic content in the leaves of the studied species in polluted areas was 1,6 (S. hypericifolia) and 2,4 (S. media , S. chamaedryfolia) times lower compared to the plants studied under baseline conditions. Decrease in the phenolic content of S. media was due to flavonol glycosides (mostly rutin). As for S. chamaedryfolia and S. hypericifolia, decrease was due to hydroxycinnamic acids and their esters.
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