Influence of UV and Ozonised Water Treatment on Trans-resveratrol Content in Berry Skins and Juices of Franc and Green Veltliner Grapes

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LANDFELD Aleš TŘÍSKA Jan BALÍK Josef STROHALM Jan NOVOTNÁ Pavla VRCHOTOVÁ Naděžda TOTUŠEK Jiří LEFNEROVÁ Danuše HÍC Pavel TOMÁNKOVÁ Eva HALAMA Radek HOUŠKA Milan

Rok publikování 2015
Druh Článek v odborném periodiku
Časopis / Zdroj Czech Journal of Food Sciences
Fakulta / Pracoviště MU

Lékařská fakulta

Citace
Obor Pěstování rostlin, osevní postupy
Klíčová slova grape juices; stilbens content; UV irradiation; ozonisation
Popis Grapes from two varieties - Franc (red) and Green Veltliner (white) were processed using UV radiation at selected powers and times. Irradiated grapes were stored for 24, 48, and 72 h at room temperature. A second set of grapes was dipped into ozonised water. We tested the influence of ozone concentration, dipping time, and storage time. All experiments were performed using grapes harvested in 2009, 2010, and 2011. The two treatments were compared relative to trans-resveratrol content in grape skins and juices (prepared from treated grapes).
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