The GC-MS Fingerprint Methods and Chemical Pattern Recognition of Nanping Flue-cured Tobacco

doi:10.3969/j.issn.1000-7091.2012.z1.004

Abstract

Abstract: In order to test the quality and characteristics of flue-cured tobacco by the technology of GC-MS fingerprint， the method of SDE combined with GC-MS were used to construct a standard fingerprint about aroma constituent of the flue-cured tobacco from Nanping． Samples of leaves from 3 other areas ( Nanping， Yunnan， Hubei andGuizhou) were used to study the standard fingerprint． Results of similarity calculation showed that， flue-cured tobacco from Nanping had a much higher similarity with the standard fingerprint， the accuracy was more than 80% ， whileflue-cured tobacco from Yunnan， Hubei and Guizhou had a lower similarity． Compared with the ones from Yunnan，Hubei and Guizhou， flue-cured tobacco from Nanping showed marked difference in quality and characteristics． Pattern recognition on fingerprint was analyzed by PCA projection drawing of flue-cured tobacco from Nanping， Yunnan， Hubei and Guizhou． The result showed that， flue-cured tobacco from Nanping had significant difference in pattern recognition on fingerprint comparing with the ones from other 3 tobacco-planting areas， which was accordantwith the result of similarity calculation． In conclusion， GC-MS fingerprint is feasible and can be used for the qualitycontrol and characteristics control of flue-cured tobacco from Nanping．

Key words: Nanping, Flue-cured tobacco, Aroma component, Fingerprint, Pattern recognition

CLC Number:

LIU Shuai-shuai, CAO Jian-min, QIU Jun, WANG Yun-bai, SUN Peng, YU Wei-song, GAO Xin-xin, DING Rui. The GC-MS Fingerprint Methods and Chemical Pattern Recognition of Nanping Flue-cured Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3969/j.issn.1000-7091.2012.z1.004.

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