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Determination of Stevioside by Square-wave Voltammetry (CROSBI ID 567002)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Komorsky-Lovrić, Šebojka ; Novak, Ivana ; Novak, Bruno Determination of Stevioside by Square-wave Voltammetry // Book of Abstracts / B. Tribollet, C. Amatore (ur.). Nica: ISE, 2010. str. 204-204

Podaci o odgovornosti

Komorsky-Lovrić, Šebojka ; Novak, Ivana ; Novak, Bruno

engleski

Determination of Stevioside by Square-wave Voltammetry

Steviol glycosides are electroactive compounds and can be detected by mercury electrode. The maxima of square-wave voltammograms of steviol and stevioside appear at -1.3 V vs Ag/AgCl in 1 M NaCl at approximately pH 11. The responses are quasireversible and probably caused by electro-reduction of carboxyl, or ester groups, respectively. The net peak current is linearly proportional to steviol concentration between 1 x 10-6 mol/L and 3.5 x 10-5 mol/L. This calibration plot can be used for the determination of the concentration of stevioside in extracts of stevia (Stevia rebaudiana Bertoni) leaves. The proposed method is applicable for routine analysis of stevioside in commercial products.

Stevioside; Square-wave Voltammetry

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Podaci o prilogu

204-204.

2010.

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objavljeno

Podaci o matičnoj publikaciji

Book of Abstracts

B. Tribollet, C. Amatore

Nica: ISE

Podaci o skupu

61 st Annual Meeting of the International Society of Electrochemistry

poster

26.09.2010-01.10.2010

Nica, Francuska

Povezanost rada

Kemija, Poljoprivreda (agronomija), Prehrambena tehnologija