• Journal of the Korean Society of Tobacco Science
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• v.28 no.2
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• pp.124-129
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• 2006

The grades of burley tobacco stems and scraps were classified followed by the nicotine and nitrate contents by using the cluster analysis. The chemical components of the burley tobacco stems and scraps gathered from 2002 to 2005 were analyzed with auto analyzer. According to the nicotine contents and the nitrate contents, the burley stems and scraps could be classified three groups, respectively. In case of the burley scraps, the AB3T, AB4TR, B1T and B2T grades belonged to the $1^{st}$ a group. The C1W and C2W grades belonged to the $2^{nd}$ group and the CD3W and CD4TR belonged to the $3^{rd}$. In case of the burley stems, the AB3T and AB4TR grades belonged to the $1^{st}$ group. The B1T, B2T, C1W and C2W grades belonged to the $2^{nd}$ group and the CD3W and CD4TR belonged to the $3^{rd}$ group. This classification of raw materials depending on the similarity in the chemical components might be helpful to control the properties of the Reconstituted Tobacco sheet.

• Journal of the Korean Society of Tobacco Science
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• v.29 no.2
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• pp.98-103
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• 2007

This study compares menthol migration from fillers to filters and mainstream smoke in a type of leaf tobacco and according to the moisture content differences at the range of $11{\sim}15\;%$. The leaf tobacco used in this study consisted of Korea flue cured upper leaves B1O (KFUB1), A40R (KFUA4), lower leaves C1L (KFLC1), CD4L (KFLCD4), burley upper leaves A3T (KBUA3), lower leaves D3W (KBLD3), Orient Basma I/III (OB), Orient Izmir BIG (OI), expanded tobacco (KET), and reconstituted sheet (KRC). Menthol migration to the filter and mainstream was measured under constant conditions for 80 days with intervals of 20 days. In the comparison between flue cured types, there were significant differences in the filter parts, as follows. KFUB1(34.4 %) KFUA4(37.4 %), KFLC1(43 %) and KFLCD4 were 55.7 %. In the comparision between other types of leaf tobaccos, KFUB1 was 34.4 % and KET was 52.6 % at filter parts. In the methol transfer to mainstream smoke was $16.5{\sim}24.2\;%$. The menthol migration to filters was measured based on the moisture content of $11{\sim}15\;%$ for the KFUB1 after storing it for 80 days. The menthol migrations were $36{\sim}40\;%$ at the moisture content of $11{\sim}15\;%$, respectively. The transfers to mainstream smoke were $12.8{\sim}15.8\;%$.