Evaluation of Quality Style and Usability of Chemical Components from Yulong Tobacco Growing Area in Lijiang

PurposeOur aim was to have a sound grasp of the quality characteristics of flue-cured tobacco in Yulong, Lijiang and provide data support for tobacco blending and cigarette manufacturing,MethodNine chemical indexes of 135 samples of Yunyan87 tobacco leaves harvested in 2014-2016 from Jiangsu industrial tobacco leaf raw material base of Yulong in Lijiang City were determined, the usability indexes of the chemical components were calculated with membership function method, and the usability of chemical components of those samples was comprehensively evaluated by means of fuzzy judgment.Results(1)Lijiang Yulong Yunyan87 raw tobacco leaves overall coordination was better, had the characteristic of high sugar, medium potassium, proper nicotine and high potassium.(2)Fragrance flavor type in middle flue-cured leaf from Yulong was prominent, with sweet aroma, refreshing aroma, woody aroma and hay-like aroma as the principal notes, auxiliary pure-sweetness aroma and spicy flavor. (3)The quality of aroma in middle flue-cured leaf from Yulong was fine, characterized by plenty of aroma. The diffusiveness was fine, and raw green odor and green odor were tiny, and ligneous odor was a little; the smoke was smooth, soft and mellow. After taste was purity and easiness with a little irritancy and dryness.(4) The ratio of sugar to nicotine and potassium chloride ratio among Yulong upper leaves from different areas had significant difference, the content of potassium of Judian was slightly low, the total nitrogen contents of Judian and Shigu was slightly lower; there were significant differences in nicotine content of middle leaves, chlorine content and ratio of potassium to chlorine in different areas, only potassium content of Tacheng was relatively low; there was no significant difference between the lower tobacco leaf the origin, all chemical indicators were more appropriate.(5)B2F tobacco leaves from Judian and C3F, X2F tobacco leaves from Shigu and Tacheng, CCUI value of tobacco leaf were all in grade I and Ⅱ range, the availability of chemical composition was as follows:upper tobacco leaf:Judian > Shigu > Tacheng; middle tobacco leaf:Judian > Shigu > Tacheng; lower tobacco leaf:Judian > Tacheng > Shigu. The inner quality and chemical composition of the tobacco leaves Judian had the best stability.ConclusionYulong Yunyan87 raw tobacco leaves meets the needs of the overall performance of the higher degree of brand and better meet Suyan style features of raw materials demand while Judian base raw tobacco chemical composition within the brand conformity is the best.