Hybrid E-Tongue for the Evaluation of Sweetness and Bitterness of Soft Drinks Fortified with Epigallocatechin Gallate

被引：11

作者：

Bulbarello, Andrea ^{[2
]}

Cuenca, Martha ^{[4
]}

Schweikert, Loni ^{[2
]}

Mannino, Saverio ^{[3
]}

Scampicchio, Matteo ^{[1
]}

机构：

[1] Free Univ Bolzano, I-39100 Bolzano, Italy

[2] DSM Nutr Prod Ltd, Nutr R&D Ctr Forms & Applicat, CH-4303 Kaiseraugst, Switzerland

[3] Univ Milan, I-20133 Milan, Italy

[4] Univ Nacl Colombia, Fac Ingn, Dept Ingn Quim & Ambiental, Bogota, Colombia

来源：

ELECTROANALYSIS | 2012年 / 24卷 / 10期

关键词：

Electronic tongue; E-tongue; Sensor array; Food analysis; Flow system; AMPEROMETRIC ELECTRONIC TONGUE; POLYPHENOLS; METABOLISM; TASTE;

D O I：

10.1002/elan.201200232

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A home-made hybrid electronic tongue was set up, validated and applied to discriminate soft drinks fortified with plant extracts of green tea. The e-tongue consists of a flow injection system equipped with two electrochemical and one optical sensors. Different formulations of soft drinks composed of glucose and epigallocatechin gallate were then discriminated by principal component analysis. Furthermore, two partial least squares regression models were developed to estimate the sweetness (r2 of 0.992) and bitterness (r2 of 0.993) of the model solutions and commercial soft drinks, before and after their fortification with epigallocatechin gallate.

引用

页码：1989 / 1994

页数：6

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