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Antioxidant activity of grape skin aqueous extracts from pressurized hot water extraction combined with electron paramagnetic resonance spectroscopy
- 1.0362980 - ÚIACH 2012 RIV NL eng J - Journal Article
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
R&D Projects: GA ČR(CZ) GAP206/11/0138; GA ČR(CZ) GPP503/11/P523
Institutional research plan: CEZ:AV0Z40310501
Keywords : antioxidant activity of grape skin polyphenols * PHWE * EPR
Subject RIV: CB - Analytical Chemistry, Separation
Impact factor: 3.794, year: 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.
Permanent Link: http://hdl.handle.net/11104/0199141
Number of the records: 1