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Current Analytical Chemistry

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ISSN (Print): 1573-4110
ISSN (Online): 1875-6727

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Research Article

Joint Voltammetry Technology with a Multi-electrode Array for Four Basic Tastes

Author(s): Lin Lu, Xianqiao Hu and Zhiwei Zhu*

Volume 15, Issue 1, 2019

Page: [75 - 83] Pages: 9

DOI: 10.2174/1573411014666180522100504

Price: $65

Abstract

Background: Rapid and easy technology which can mimic the tongue for the simultaneous perception of several tastes based on sensory analysis and mathematical statistics is sorely needed.

Methods: Joint voltammetry technology was developed to qualitatively and quantitatively analyze four basic tastes namely sweetness, saltiness, sourness and bitterness with the multi-electrode array. Four taste stimuli were corresponded to four tastes. Cyclic Voltammetry (CV), Differential Pulse Voltammetry (DPV) and Square Wave Voltammetry (SWV) were employed. The original voltammetric signals were transformed by Continuous Wavelet Transform (CWT) in order to reveal more feature information for sensing taste stimuli. Joint voltammetry was applied via the combination of voltammetry. The data of feature points from the transformed signal as the input were used for neural network model.

Results: Layer-Recurrent neural network (LRNN) could effectively identify the types of stimuli. The accuracies of the training set and test set by joint voltammetry were both higher than that of regular voltammetry, confirming that Back Propagation neural network (BPNN) could quantitatively predict single taste stimulus of the mixture.

Conclusion: Joint voltammetry technology had a strong ability to sense basic tastes as human tongue.

Keywords: Basic taste, electrode, taste stimulus, voltammetry, Cyclic Voltammetry (CV), Differential Pulse Voltammetry (DPV), Square Wave Voltammetry (SWV).

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