JIANG Yuan-xin, LIU Bo-ke and LIU Xiao-ling. Research on evaluation methods of oral odor by electronic nose[J]. Journal of Light Industry, 2016, 31(6): 8-15. doi: 10.3969/j.issn.2096-1553.2016.6.002
Citation:
JIANG Yuan-xin, LIU Bo-ke and LIU Xiao-ling. Research on evaluation methods of oral odor by electronic nose[J]. Journal of Light Industry, 2016, 31(6): 8-15.
doi:
10.3969/j.issn.2096-1553.2016.6.002
Research on evaluation methods of oral odor by electronic nose
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Department of Food Engineering, Guangxi Agricultural Vocational College, Nanning 530007, China;
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College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
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Received Date:
2016-07-08
Available Online:
2016-12-15
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Abstract
Saliva stench in different incubation times was measured by electronic nose. The optimal detection time, characteristic parameter area and main sensors were obtained through the measurement data analyzed by SPSS, PCA, LDA and Loadings analysis combined with radar map characteristic analysis. The results showed that each sensor was sufficiently distinguished in vicinity 5 s of maximum, and thus used as feature extraction parameters. When the incubation time was 12 h, each sensor had a significant difference, so 12 h was used as detection time. There was a significant difference(P<0.05) between electronic nose sensors R6 (W1S), R7 (W1W) and R9 (W2W) response to oral odor gas and other sensor in incubating 12 h and correlation coefficients were greater than 0.9. The three sensors played a major role in the expression of halitosis. And it manifested that the saliva stench gases were volatile sulphur and methyl compounds.
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Proportional views
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