Antioxidant activity of grape skin aqueous extracts from pressurized hot water extraction combined with electron paramagnetic resonance spectroscopy

0362980 - ÚIACH 2012 RIV NL eng J - Článek v odborném periodiku
Šťavíková, Lenka - Polovka, M. - Hohnová, Barbora - Karásek, Pavel - Roth, Michal
Antioxidant activity of grape skin aqueous extracts from pressurized hot water extraction combined with electron paramagnetic resonance spectroscopy.
Talanta. Roč. 85, č. 4 (2011), s. 2233-2240. ISSN 0039-9140. E-ISSN 1873-3573
Grant CEP: GA ČR(CZ) GAP206/11/0138; GA ČR(CZ) GPP503/11/P523
Výzkumný záměr: CEZ:AV0Z40310501
Klíčová slova: antioxidant activity of grape skin polyphenols * PHWE * EPR
Kód oboru RIV: CB - Analytická chemie, separace
Impakt faktor: 3.794, rok: 2011

Pressurized hot water extraction (PHWE) was employed to prepare extracts from dried grape skin of two wine grape varieties (St. Laurent and Alibernet) at various temperatures (from 40 up to 120 °C) and amounts of sample (0.5, 1.0 and 1.5 g). Electron paramagnetic resonance (EPR) spectroscopy was then applied to evaluate the antioxidant activity of the extracts.
Trvalý link: http://hdl.handle.net/11104/0199141