【作者】 韦凤杰；

【Author】 (College of Agronomy Henan Agricutural University National Tobacco Cultivation、physiology and Biochemistry Research Center, Zhengzhou 450002)

【机构】 河南农业大学农学院；

【摘要】 利用反相高效液相色谱法和分光光度计法初步对不同部位烤烟叶片发育过程中类胡萝卜素进行了测定。结果表明,烤烟发育过程中类胡萝卜素含量随生育时期的推进而逐渐下降,但不同部位叶片的类胡萝卜素代谢有明显差异。烤烟发育过程中中部叶片的β胡萝卜素、新黄质、紫黄质、叶黄质、叶黄素均在欠熟期有一低谷,且定长—欠熟—尚熟阶段变化呈明显“V”型。与下部叶片、中部叶片相比,上部叶片发育后期β胡萝卜素、新黄质、紫黄质、叶黄质、叶黄素含量均较高,其中β胡萝卜素含量最高,为68.04μg/g。更多还原

【Abstract】 The contents of carotenoids in different part of Flue-cured tobacco leaf during its growth development have determined by RP-HPLC and .The results show that the contents of cartenoids are less step by step during the Flue-cured tobacco leaf growth development and different part of tobacco have different ways. β-Carotene, neoxanthin, violaxanthin, lutein and xanthophylls are also have all-time low at lacking ripe stage in the middle part of the Flue-cured tobacco leafs during the development and express type like "V" .Contrasting with lower part of tobacco leaf and middle part of tobacco leafs, upper part Flue-cured tobacco leafs during its latter stage have more contents about β-carotene、neoxanthin、violaxanthin、lutein and xanthophylls,and β-carotene has 68.04μg/g as the most.更多还原