期刊
ANALYTICAL METHODS
卷 7, 期 13, 页码 5682-5688出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ay00596e
关键词
-
资金
- National Natural Science Foundation of China [31271875]
Total volatile basic nitrogen (TVB-N) content is an important indicator for evaluating meat's freshness. This study attempts to quantify TVB-N content non-destructively in chicken using a colorimetric sensors array with the help of multivariate calibration. First, we fabricated a colorimetric sensor array by printing 12 chemically responsive dyes on a C2 reverse silica-gel flat plate. A color change profile was obtained by differentiating the images of the sensor array before and after exposure to volatile organic compounds (VOCs) released from a chicken sample. In addition, we proposed a novel algorithm for modeling, which is a back propagation artificial neural network (BPANN), and an adaptive boosting (AdaBoost) algorithm, namely, AdaBoost-BPANN, and we compared it with the commonly used algorithms. Experimental results showed that the optimum model was achieved by the AdaBoost-BPANN algorithm with RMSEP = 7.7124 mg/100 g and R = 0.8915 in the prediction set. This study demonstrated that the colorimetric sensors array has a high potential in the non-destructive sensing of chicken's freshness and that the AdaBoost-BPANN algorithm performs well as a solution to a complex data calibration.
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