Electrochemical Analysis Using Nano-Sensor of Stevia Herb as a Healthful Alternative Sugar

Abstract

Stevia rebaudiana is a plant herb which has good properties for using as an alternative of the glucose sugar. Electrochemical study was used to calculate the limited safety dose by a cyclic voltammetric technique using nano-sensor as modified glassy carbon electrode (GCE) with carbon nanotubes (CNT) as MWCNT/GCE. The oxidation current peak of stevia compound was appeared in the concentration of 0.4 mM (28 mg/mL), and the reduction current peak appeared at -500 mV, and so it can be concluded that stevia compound is an anti-oxidative sweetener compound at a limited concentration for safety using. Also, the electrochemical properties of the stevia compound were studied in acidic and alkaline pH to accord the oxidative behavior in acidic medium and act as anti-oxidative in alkaline solution.

Nanosensor for Characterization of Stevia in the Black Tea Medium Based on Cyclic Voltammetry

“…Some changes have been made in the study of chemical compounds, especially herbal extracts, to find out which of the properties affecting the composition of the blood in humans through oxidation and reduction to benefit in determining the extent of their ability to the phenomenon of oxidation or reduction reaction [1][2][3][4][5][6][7]. Figure 1 illustrates the chemical structure of stevia compound.…”