About: Electrochemical and spectrometric study of antioxidant activity of pomiferin, isopomiferin, osajin and catalposide

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Description	The antioxidant properties of pomiferin, isopomiferin, osajin and catalposide are evaluated. The electrochemical behaviour of these compounds at a carbon paste electrode was studied using square wave voltammetry. Oxidative signals, optimized frequencies and appropriate pH acetate buffer conditionswere determined. The detection limits (3 S/N) for pomiferin, isopomiferin, osajin and catalposide were estimated to be 50 pg/ml, 800 pg/ml, 40 pg/ml and 10 ng/ml, respectively. Furthermore, spectrometric test was employed with 2,2-diphenyl-1-picrylhydrazyle (DPPH) to evaluate the antioxidant activities of these compounds. Based on the obtained results, the highest antioxidant activity measured by DPPH tests was found at pomiferin followed by isopomiferin. The activities of osajin and catalposide were undetectable. The protective effects of pomiferin, isopomiferin, osajin and catalposide on DNA exposed to oxygen radicals in vitrowere also studied. The antioxidant properties of pomiferin, isopomiferin, osajin and catalposide are evaluated. The electrochemical behaviour of these compounds at a carbon paste electrode was studied using square wave voltammetry. Oxidative signals, optimized frequencies and appropriate pH acetate buffer conditionswere determined. The detection limits (3 S/N) for pomiferin, isopomiferin, osajin and catalposide were estimated to be 50 pg/ml, 800 pg/ml, 40 pg/ml and 10 ng/ml, respectively. Furthermore, spectrometric test was employed with 2,2-diphenyl-1-picrylhydrazyle (DPPH) to evaluate the antioxidant activities of these compounds. Based on the obtained results, the highest antioxidant activity measured by DPPH tests was found at pomiferin followed by isopomiferin. The activities of osajin and catalposide were undetectable. The protective effects of pomiferin, isopomiferin, osajin and catalposide on DNA exposed to oxygen radicals in vitrowere also studied. (en)
Title	Electrochemical and spectrometric study of antioxidant activity of pomiferin, isopomiferin, osajin and catalposide Electrochemical and spectrometric study of antioxidant activity of pomiferin, isopomiferin, osajin and catalposide (en)
skos:prefLabel	Electrochemical and spectrometric study of antioxidant activity of pomiferin, isopomiferin, osajin and catalposide Electrochemical and spectrometric study of antioxidant activity of pomiferin, isopomiferin, osajin and catalposide (en)
skos:notation	RIV/00216305:26220/08:PU78015!RIV13-MSM-26220___
http://linked.open...avai/riv/aktivita	I P S Z
http://linked.open...avai/riv/aktivity	I, P(1A8666), S, Z(MSM6215712402)
http://linked.open...iv/cisloPeriodika	48
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Hubálek, Jaromír
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta elektrotechniky a komunikačních technologií
http://linked.open...dnocenehoVysledku	365765
http://linked.open...ai/riv/idVysledku	RIV/00216305:26220/08:PU78015
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Flavonoids, Iridoid glucoside, DNA, Oxidation signal, Voltammetry, Antioxidant capacity (en)
http://linked.open.../riv/klicoveSlovo	Antioxidant capacity DNA Flavonoids Voltammetry Iridoid glucoside Oxidation signal
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[F0193F577D98]
http://linked.open...i/riv/nazevZdroje	JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
http://linked.open...in/vavai/riv/obor	FR
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...vavai/riv/projekt	Verification of antidiabetic effect of ethnobotanicaly important herbal medicines
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	2008
http://linked.open...iv/tvurceVysledku	Adam, Vojtěch Babula, Petr Hubálek, Jaromír Kizek, René Trnková, Libuše Diopan, Václav
http://linked.open...n/vavai/riv/zamer	Veterinary aspects of food safety and quality
issn	0731-7085
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	26220

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