Rapid Identification of Liquor Fragrance using an Ion Selective Electrode Array
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Abstract:
Liquor is traditional and unique product of China. Because of different brewing materials and processes, Chinese liquor has different and flavor taste. At this stage, the scent of liquor fragrance is divided into eight kinds. In order to rapidly identify liquor flavor, a taste sensor array based on 12 ion selective electrodes was developed and used for analyzing eight kinds of scent liquor. In this paper, the principal component analysis, cluster analysis and linear discriminant analysis were used to analyze the experimental data. In the three-dimensional diagram of principal component analysis, eight different flavors of liquor can be clearly distinguished, and the cumulative contribution rate of the first three principal components was of 75.01%. Using cluster analysis to further analyze the data, the recognition percentages of the eight different types of spirits reached up to 93.75%. Finally, the linear discriminant analysis was used to identify the test samples, the discriminant percentage between the correction set and the prediction set was up to 100%. This study showed that the developed taste sensor array has good identification ability for different flavors of liquor.
