仓储方式对初烤烟叶质量的影响

目的研究烟叶表观颜色与内在化学成分的关系。方法采用标准方法测定了云烟87烟叶颜色及不同形态烟叶的相关化学成分。结果(1)短期贮存过程中，烟叶颜色亮度持续降低、红度逐步升高至稳定、黄度基本平稳，正反面颜色的变化基本同步；(2)烟叶中总植物碱、总氮、总糖、绿原酸和芸香苷的含量均有降低，还原糖和莨菪亭含量增加；(3)烟叶正面的空间颜色参数与还原糖和多酚类物质的相关性达到显著或极显著水平。结论在烟叶贮存过程中应密切关注烟叶颜色变化，合理确定打叶时间和加工方式，为更好地提升烟叶内在质量、保证烟叶品质奠定基础。

The Linkage of Colors and Chemical Components within Flue-cured Tobacco Leaves

PurposeStudy on the relation of apperant colors and internal chemical components in tobacco leaves.Method The color and chemical composition of different forms of Yunyan87 were examined by standard method.Result(1) The brightness of tobacco leaves continued to slide, red color became dominating until it reached stability, yellow color was quite stable, color changed between the front and back face of the leaves were synchronized, under short-term storage. (2) The contents of total alkaloids, nitrogen and sugar, as well as chlorogenic acid and rutin were declined, the contents of reducing sugar and scopoletin were increased, within tobacco leaves. (3) The relativities in color of front face of the leaves reached 5% or 1% signification levels in comparison with reducing sugar and polyphenols.ConclusionIn order to improve the internal quality of the tobacco leaves, consistent surveillance on the color changes of tobacco leaves during storing process, as well as to establish a suitable plan for threshing and redrying tobacco leaves and further manufacturing become so important.