About: Determination of antioxidant activity and antioxidant content in tomato varieties and evaluation of mutual interactions between antioxidants

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Major antioxidants and antioxidant activity in eight varieties of tomatoes were determined. Hydrophilic and lipophilic antioxidant activity (HAA and LAA) was determined by the ABTS assay and ascorbic acid and carotenoid contents were determined by HPLC-DAD. The HAA has far more significant impact on total antioxidant activity (83%) as compared with LAA. HAA was increasing during all ripening stages and was strongly correlated with ascorbic acid content (r=0.83). During the ripening the LAA was increasing till the III. stage of maturity and then decreased. The main carotenoids determined in the red-fruit tomatoes were lycopene, ß-carotene and lutein. The content of lycopene has been increasing evenly during the ripening. ß-Carotene and lutein were intensively synthesized between the I. and II. stage of maturity. Among ascorbic acid, alpha-tocopherol, lycopene, ß-carotene and lutein standards ascorbic acid was determined as the most efficient antioxidant followed by alpha-tocopherol and ß-carotene. Major antioxidants and antioxidant activity in eight varieties of tomatoes were determined. Hydrophilic and lipophilic antioxidant activity (HAA and LAA) was determined by the ABTS assay and ascorbic acid and carotenoid contents were determined by HPLC-DAD. The HAA has far more significant impact on total antioxidant activity (83%) as compared with LAA. HAA was increasing during all ripening stages and was strongly correlated with ascorbic acid content (r=0.83). During the ripening the LAA was increasing till the III. stage of maturity and then decreased. The main carotenoids determined in the red-fruit tomatoes were lycopene, ß-carotene and lutein. The content of lycopene has been increasing evenly during the ripening. ß-Carotene and lutein were intensively synthesized between the I. and II. stage of maturity. Among ascorbic acid, alpha-tocopherol, lycopene, ß-carotene and lutein standards ascorbic acid was determined as the most efficient antioxidant followed by alpha-tocopherol and ß-carotene. (en)
Title	Determination of antioxidant activity and antioxidant content in tomato varieties and evaluation of mutual interactions between antioxidants Determination of antioxidant activity and antioxidant content in tomato varieties and evaluation of mutual interactions between antioxidants (en)
skos:prefLabel	Determination of antioxidant activity and antioxidant content in tomato varieties and evaluation of mutual interactions between antioxidants Determination of antioxidant activity and antioxidant content in tomato varieties and evaluation of mutual interactions between antioxidants (en)
skos:notation	RIV/60460709:41210/11:50569!RIV12-MZE-41210___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(QH92110), Z(MSM6046070901)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hejtmánková, Alena Hejtmánková, Kateřina Kotíková, Zora Lachman, 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	Česká zemědělská univerzita v Praze / Fakulta agrobiologie, potravinových a přírodních zdrojů
http://linked.open...dnocenehoVysledku	193802
http://linked.open...ai/riv/idVysledku	RIV/60460709:41210/11:50569
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Tomato, Ripening, Antioxidants, Antioxidant activity, Synergistic effect (en)
http://linked.open.../riv/klicoveSlovo	Antioxidant activity Ripening Synergistic effect Tomato Antioxidants
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[7E378783C565]
http://linked.open...i/riv/nazevZdroje	LWT-Food Science and Technology
http://linked.open...in/vavai/riv/obor	GM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Use of the flesh-coloured potatoes as an alternative crop with the specific food quality
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	44
http://linked.open...iv/tvurceVysledku	Lachman, Jaromír Hejtmánková, Alena Hejtmánková, Kateřina Kotíková, Zora
http://linked.open...ain/vavai/riv/wos	000291918000003
http://linked.open...n/vavai/riv/zamer	Setrvalé zemědělství, kvalita zemědělské produkce, krajinné a přírodní zdroje.
issn	0023-6438
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.lwt.2011.03.015
http://localhost/t...ganizacniJednotka	41210

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