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Flavonoid contents of propolis from the west side of Romania and correlation with the antioxidant activity [articol]

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dc.contributor.author Coneac, G.
dc.contributor.author Gafiţanu, Eliza
dc.contributor.author Hădărugă, Daniel
dc.contributor.author Hădărugă, Nicoleta
dc.contributor.author Pînzaru, Iulia Andreea
dc.contributor.author Bandur, Geza-Nicolae
dc.contributor.author Urșica, L.
dc.contributor.author Păunescu, V.
dc.contributor.author Gruia, Alexandra
dc.date.accessioned 2020-04-08T15:11:59Z
dc.date.accessioned 2021-03-01T08:36:50Z
dc.date.available 2020-04-08T15:11:59Z
dc.date.available 2021-03-01T08:36:50Z
dc.date.issued 2008
dc.identifier.citation Coneac, G.. Flavonoid contents of propolis from the west side of Romania and correlation with the antioxidant activity. Timişoara: Editura Politehnica, 2008 en_US
dc.identifier.uri http://primo.upt.ro:1701/primo-explore/search?query=any,contains,Flavonoid%20contents%20of%20propolis%20from%20the%20west%20side%20of%20Romania%20and%20correlation%20with%20the%20antioxidant%20activity&tab=default_tab&search_scope=40TUT&vid=40TUT_V1&lang=ro_RO&offset=0 Link Primo
dc.description.abstract Propolis is a gum-like product which are gathered by bees from various plants, and which vary in color from light yellow to dark brown. It is known that the propolis have antibacterial, anticarcinogenic, and immunostimulating biological activities. Parts of these activities are probable due to the antioxidative effect of some compounds which occur in relatively higher concentrations in propolis (especially flavonoids). In this paper are presented the identification and quantification by HPLC analysis of the main flavonoids from propolis collected from the west side of Romania and the correlation of the antioxidative activity of the propolis extracts (evaluated by the DPPH method) with the flavonoidic contents. The significative concentration was observed for quercetin and rutin, caffeic acid, and chrysin; other flavonoids were apigenin and kaempferol (up to 5 mg/g). The antioxidative activity was significative for the 60% and 96% ethanol propolis extracts and this activity has a good correlation with the propolis flavonoid concentrations. The rate of the DPPH consumption in the presence of these extracts were up to tens µM/s, this rate being in good correlation with the flavonoid concentration of the propolis extracts. en_US
dc.language.iso en en_US
dc.publisher Timişoara : Editura Politehnica en_US
dc.relation.ispartofseries Seria chimie şi ingineria mediului,;Tom 53(67), fasc. 1-2 (2008)
dc.subject Chimie organică -- Flavonoide -- Articol en_US
dc.subject Propolis en_US
dc.subject Flavonoids en_US
dc.subject Quercetin en_US
dc.subject Antioxidant activity en_US
dc.subject DPPH method en_US
dc.subject HPLC en_US
dc.title Flavonoid contents of propolis from the west side of Romania and correlation with the antioxidant activity [articol] en_US
dc.type Article en_US


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