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Prediction of theaflavin and thearubigin content in black tea using a voltammetric electronic tongue
被引:34
作者:
Ghosh, Arunangshu
[1
]
Tudu, Bipan
[1
]
Tamuly, Pradip
[2
]
Bhattacharyya, Nabarun
[3
]
Bandyopadhyay, Rajib
[1
]
机构:
[1] Jadavpur Univ, Dept Instrumentat & Elect Engn, Kolkata 700098, India
[2] Tea Res Assoc, Jorhat 785008, Assam, India
[3] Ctr Dev Adv Comp, Kolkata 700091, India
关键词:
Theaflavins;
Thearubigins;
Voltammetric electronic tongue;
Partial least squares regression;
Support vector regression;
Multi-layer perceptrons;
QUALITY;
CLASSIFICATION;
DISCRIMINATION;
TASTE;
NOSE;
CHROMATOGRAPHY;
FERMENTATION;
CATECHINS;
WINES;
ARRAY;
D O I:
10.1016/j.chemolab.2012.04.010
中图分类号:
TP [自动化技术、计算机技术];
学科分类号:
0812 ;
摘要:
The two most important chemical groups that decide the liquor characteristics of black CTC (cut, torn and curled) tea are theaflavins (TF) and thearubigins (TR). Hence, a quick estimation of concentration of these compounds can significantly contribute to the evaluation process for the quality of finished tea in an objective manner. In this paper, a scheme for rapid measurement of concentration of TF and TR is described using a voltammetric electronic tongue with five working electrodes made of noble metals. The results indicate good correlation of electronic tongue predictions with the actual concentrations obtained using ultraviolet-visible spectrophotometer. (C) 2012 Elsevier B.V. All rights reserved.
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页码:57 / 66
页数:10
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