Research on evaluation methods of oral odor by electronic nose
JIANG Yuan-xin
LIU Bo-ke
LIU Xiao-ling
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 1 2 h,each sensor had a significant difference,so 1 2 h was used as detection time.There was a significant difference(P<0.05)between electronic nose sensors R6(W1 S),R7 (W1 W)and R9 (W2W)response to oral odor gas and other sensor in incubating 1 2 h and correlation coeffi-cients were greater than 0.9.The three sensors played a major role in the expression of halitosis.And it mani-fested that the saliva stench gases were volatile sulphur and methyl compounds.
Keywords：oral odorelectronic noseincubation
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 8-15 )