摘要
This study aimed at investigating the effect of the width/length ratio of flue-cured tobacco leaves on their chemical composition and neutral aroma components. Yunyan 87 was selected as the raw material, and four treatment conditions were designed for the middle and upper leaves. All research was conducted in the city of Chongqing in southwest China. Results indicated that correlations between the width/length ratio and the contents of total sugar, reducing sugar, and potassium, the difference between total and reducing sugar contents, the ratio of sugar to nicotine, and the ratio of potassium to chlorine were significantly positive in the upper and middle leaves. By contrast, correlations with the contents of nicotine and chlorine and the ratio of reducing to total sugar were significantly negative. In addition, the contents of phenylalanines, Maillard reaction products, carotenoids, neophytadiene, and neutral aroma components were higher in the leaves with larger width/length ratios. Therefore, appropriate measures should be implemented to increase the width/length ratio of the upper and middle leaves of tobacco to achieve improvements in tobacco quality.
This study aimed at investigating the effect of the width/length ratio of flue-cured tobacco leaves on their chemical composition and neutral aroma components. Yunyan 87 was selected as the raw material, and four treatment conditions were designed for the middle and upper leaves. All research was conducted in the city of Chongqing in southwest China. Results indicated that correlations between the width/length ratio and the contents of total sugar, reducing sugar, and potassium, the difference between total and reducing sugar contents, the ratio of sugar to nicotine, and the ratio of potassium to chlorine were significantly positive in the upper and middle leaves. By contrast, correlations with the contents of nicotine and chlorine and the ratio of reducing to total sugar were significantly negative. In addition, the contents of phenylalanines, Maillard reaction products, carotenoids, neophytadiene, and neutral aroma components were higher in the leaves with larger width/length ratios. Therefore, appropriate measures should be implemented to increase the width/length ratio of the upper and middle leaves of tobacco to achieve improvements in tobacco quality.
引文
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