電子鼻氣味指紋數(shù)據(jù)對煙絲加香質(zhì)量的評價
Quality Evaluation of Flavored Cut Tobacco Using Sensor Array Fingerprint Technology of Electronic Nose
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摘要: 將電子鼻氣味指紋數(shù)據(jù)應(yīng)用于對加香前后煙絲的檢測,，旨在尋求一種快速有效的方法以實現(xiàn)對加香煙絲的質(zhì)量監(jiān)控,。通過主成分分析法處理電子鼻對加香前后煙絲揮發(fā)性成分的指紋數(shù)據(jù),，發(fā)現(xiàn)該分析方法能夠有效區(qū)分加香前后的煙絲，而且還能夠有效評價煙絲加香的均勻性,。采用統(tǒng)計質(zhì)量控制分析法處理加香后煙絲揮發(fā)性成分指紋數(shù)據(jù),，發(fā)現(xiàn)該分析方法能夠有效的對加香后煙絲的氣味品質(zhì)進行生產(chǎn)過程中的質(zhì)量監(jiān)控。利用電子鼻貨架壽命分析了貯存時間對加香煙絲揮發(fā)性成分的影響趨勢,，發(fā)現(xiàn)加香煙絲的揮發(fā)性成分隨著貯存時間的延長逐漸減少,，綜合考慮隨著貯存時間的延長，加香煙絲揮發(fā)性成分的均勻性越好和加香煙絲揮發(fā)性成分損失越多兩個方面的因素,，得出加香煙絲在貯絲柜的最佳貯存時間范圍,。Abstract: In order to obtain a fast and available process to control the quality of flavored cut tobacco, the sensor array fingerprint technology of electronic nose (E-nose) was applied in identifying of flavored cut tobacco according to volatile compounds. The data acquired by electronic nose were analyzed by the principal component analysis (PCA) in order to reduce data dimension and optimize feature vectors. The results indicated that electronic nose could discriminate cut tobacco from flavored cut tobacco and evaluate the uniformity of flavored cut tobacco effectively. The data analyzed by Statistical Quality Control (SQC) could evaluate the quality of flavored cut tobacco effectively according to the volatile components in cut tobacco during the production process. The shelf life of the electronic nose analyzed the effect of the storage time on change of volatile components of flavored cut tobacco. The results indicated that the volatile components of flavored cut tobacco decreased with the increase of the storage time; however, the uniformity of flavored cut tobacco was better with the increase of the storage time. According to the two factors, the best storage time for flavored cut tobacco was identified.
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