采收方式对烤烟上部烟叶色素和多酚化合物的影响

Effects of Harvesting Methods on the Pigments and Polyphenol Compounds in Upper Leaves of Flue-cured Tobacco

[目的]研究不同采收方式对烤烟上部烟叶色素和多酚化合物的影响。[方法]3种采收方式分别为上部6片叶一次性摘采、上部6片叶一次性砍采、上部6片叶每次采收2片。研究其对上部烟叶叶黄素、β胡萝卜素、其他类胡萝卜素、多酚化合物含量的影响。[结果]上部6片叶一次性砍烤处理的烟叶叶黄素、β-胡萝卜素、其他类胡萝卜素在烘烤过程中降解慢,烤后烟叶色素类化合物含量高于其他2个处理。上部6片叶一次性砍烤处理在烘烤过程中能够显著提高多酚类化合物含量,有利于提高烟叶的外观质量和内在品质。[结论]建议推行上部6片叶一次性砍烤技术,促进优质烟叶的生产。

[ Objective ] To research the effects of harvesting methods on the pigments and polyphenol compounds in upper leaves of flue-cured tobacco. [ Method ] There were three harvesting treatments,which were one-time picking of the six upper leaves, one-time cutting and curing of the six upper leaves, harvesting two leaves each time. The effects of three harvesting methods on the lntein,β-carotene, other carotenoids, and polyphenol compounds were researched. [ Result ] Contents of lntein, β-arotene, other carotenoids slowly degraded during curing in treatment of one-time cutting and curing of the six upper leaves. The pigments contents after curing were higher than those in other two treatments. One-time cutting and curing of the six upper leaves could significantly enhance the content of polyphenol compounds,which was helpful to increase the appearance quality and inner quality of tobacco leaves. [ Conclusion] It is suggested to promote the treatment of one-time cutting and curing of the six upper leaves, so as to promote the production of tobacco leaves.