Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
CHRONOAMPEROMETRIC EVALUATION OF THE ANTIOXIDANT CAPACITY OF MICELLAR SPICE EXTRACTS
Form of presentationArticles in international journals and collections
Year of publication2015
Языкрусский
  • Budnikov German Konstantinovich, author
  • Ziganshina Endzhe Rishatovna, author
  • Ziyatdinova Guzel Kamilevna, author
  • Nguen Kong Fuk, postgraduate kfu
  • Bibliographic description in the original language Ziyatdinova G.K. Chronoamperometric evaluation of the antioxidant capacity of micellar spice extracts / G.K. Ziyatdinova, E.R. Ziganshina, Ph. Nguyen Cong, H.C. Budnikov /UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI. - 2015. - V. 157. - No. 3. - P. 119-131.
    Annotation The oxidation potentials of micellar spice extracts on a glassy carbon electrode modified with cerium dioxide nanoparticles in the Brij? 35 micellar medium in phosphate buffer solution have been found. A chronoamperometric approach for evaluation of the antioxidant capacity (AOC) of micellar spice extracts based on the oxidation of their antioxidants under the conditions of potentiostatic electrolysis at 1.1 V has been developed. It has been shown that steady-state electrolysis is attained in 100 s. The AOC has been expressed in gallic acid equivalents recalculated per 1 g of dry spices. The dynamic analytical range of gallic acid was 7.50–2500 μM with the limits of detection and quantification of 2.27 and 7.50 μM, respectively. The approach has been tested on the extracts of 20 spices. Their AOC varied in a wide range (from 109.0 ? 0.2 mg/g for clove to 1.9 ? 0.1 mg/g for caraway) owing to the composition and contents of active components in raw plant materials.
    Keywords Chronoamperometry, chemically modified electrodes, antioxidant capacity, spices, food analysis.
    The name of the journal UCHENYE ZAPISKI KAZANSKOGO UNIVERSITETA-SERIYA ESTESTVENNYE NAUKI
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=174373&p_lang=2

    Full metadata record