Estimation of antioxidative properties of tea leaves by abrasive stripping electrochemistry (CROSBI ID 157344)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Komorsky-Lovrić, Šebojka ; Novak, Ivana
engleski
Estimation of antioxidative properties of tea leaves by abrasive stripping electrochemistry
Electrooxidation potentials of powdered green and black teas were determined by abrasive stripping voltammetry. A circular surface of paraffin-impregnated graphite rod was contaminated with tea microparticles and used as a chemically prepared working electrode in square-wave voltammetric experiments. The responses are ascribed to electrooxidation of flavanols in teas. Low oxidation potentials of some green teas were observed. An advantage of the proposed method is that no extraction of electroactive components is necessary.
tea ; (-)-epigallocatechin gallate ; (-)-epigallocatechin ; (-)-epicatechin gallate
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Podaci o izdanju
74 (10)
2009.
1467-1475
objavljeno
0010-0765
10.1135/cccc2009062
Povezanost rada
Kemija, Prehrambena tehnologija