贵州烟区烤烟品种云烟87主要化学成分特征分析

Characteristics of Main Chemical Constituents of Flue-cured Tobacco Yunyan 87 in Guizhou Tobacco Planting Area

[目的]分析贵州主产区烤烟品种云烟87主要化学成分,掌握其特点。[方法]对贵州省主产烟区烤烟品种云烟87主要化学成分进行分析,并与云南主产区云烟87化学成分进行比较。[结果]分析表明,贵州烟区烤烟品种云烟87主要化学成分总体协调,总糖含量、还原糖含量较高,钾含量略低,糖碱比略高,总植物碱含量、氯含量、总氮含量、氮碱比、钾氯比均较适宜;钾氯比的变异系数最大,总糖和还原糖含量的变异系数最小;云烟87烤烟总糖含量、总植物碱含量和糖碱比在不同等级样品间差异显著;氯含量、钾含量和氮碱比在不同地区间差异显著。贵州云烟87样品总糖含量、氯含量显著低于云南云烟87样品,钾氯比显著高于云南云烟87样品。[结论]研究可为贵州烤烟云烟87的优质生产和合理布局提供理论依据。

[Objective] To analyze main chemical components and characteristics of flue-cured tobacco Yunyan 87 in Guizhou tobacco planting area. [Method] The main chemical constituents of flue-cured tobacco Yunyan 87 in Guizhou tobacco planting area were analyzed,and were also compared with samples of flue-cured tobacco Yunyan 87 from Yunnan. [Result] The results indicated that the main chemical constituents of Yunyan 87 in Guizhou tobacco planting area were harmonious in general. The contents of total sugar,reducing sugar and the ratio of total sugar to nicotine were relatively high,while the contents of potassium were relatively low. The contents of total nitrogen,total alkaloid,chlorine,the ratio of total nitrogen to nicotine and the ratio of potassium to chlorine were medium. Among the main chemical constituents,the coefficient of variation of the ration of potassium to chlorine was the biggest,while the coefficient of variation of total sugar and reducing sugar was the smallest. The contents of total sugar,total alkaloid and the ratio of sugar to nicotine showed significant difference among different grades,while the contents of chlorine,potassium and the ratio of total nitrogen to nicotine had significant difference among different tobacco planting areas. Compared with samples of flue-cured tobacco Yunyan 87 from Yunnan,the contents of total sugar and chlorine in sample of Yunyan 87 in Guizhou planting area were significantly lower,and the ratio of potassium to chlorine was greatly higher. [Conclusion]The study can provide theoretical basis for high quality production and reasonable layout of Guizhou flue-cured tobacco Yunyan 87.