湘烟7号烘烤过程中烟叶失水和色素降解特性  

Characteristics of Water Loss and Pigment Degradation of Xiangyan No.7 Tobacco Leaves during Curing Process

作　　者：朱林 曹想 邓小华[1,2] 胡日生 裴晓东 向世鹏 肖志君 王卫民 章程[4] 江智敏 Zhu Lin;Cao Xiang;Deng Xiaohua;Hu Risheng;Pei Xiaodong;Xiang Shipeng;Xiao Zhijun;Wang Weimin;Zhang Cheng;Jiang Zhimin(College of Agronomy,Hunan Agricultural University,Changsha 410128,Hunan,China;China Tobacco Mid-South Agricultural Experimental Station,Changsha 410004,Hunan,China;Hunan Tobacco Company Changsha Branch,Changsha 410011,Hunan,China;China Tobacco Zhejiang Industrial Co.,Ltd.,Hangzhou 310008,Zhejiang,China)

机构地区：[1]湖南农业大学农学院,湖南长沙410128 [2]中国烟草中南农业试验站,湖南长沙410004 [3]湖南省烟草公司长沙市公司,湖南长沙410011 [4]浙江中烟工业有限责任公司,浙江杭州310008

出　　处：《作物杂志》2022年第5期174-179,共6页Crops

基　　金：湖南省烟草公司长沙市公司科技项目(CYKJ2017-02CYKJ2018-01);浙江中烟项目(2020330000340027)。

摘　　要：为明确湘烟7号在烘烤过程中烟叶失水和色素降解的特性,以云烟87为对照,采用电烤箱试验方法,探究不同部位烟叶的叶片与叶脉失水特性及叶绿素与类胡萝卜素的降解特性。结果表明,湘烟7号叶片失水高峰早于对照;湘烟7号中、下部叶易烤特性优于对照,上部叶相反;在变黄前期(24h),湘烟7号叶绿素a降解速率显著低于对照,而叶绿素b相反;湘烟7号与对照的叶绿素降解量差异不显著;湘烟7号的类胡萝卜素降解速率和降解量显著低于对照。可见,湘烟7号烘烤过程中烟叶失水和色素降解具有一定的独特性,需依据该品种烘烤特性制定适宜的烘烤工艺,以发挥其质量潜势。In order to explore the characteristics of water loss and pigment degradation during curing process of flue-cured tobacco of Xiangyan No.7,using Yunyan 87 as control(CK),the water loss characteristics of leaves and veins and the degradation characteristics of chlorophyll a,chlorophyll b,total chlorophyll and carotenoids were studied by electric-heated flue-curing barn.The results showed the water loss peak of Xiangyan No.7 was earlier than CK.The easy curing potential of middle and lower leaves were better than CK,while the upper leaf showed the opposite trend.In the early yellowing(24h),the degradation rate of chlorophyll a was significantly lower than that of CK,while the chlorophyll b showed a opposite trend.No significant difference in chlorophyll degradation existed between Xiangyan No.7 and CK.The carotenoid degradation rate and quantity of Xiangyan No.7 were significantly lower than CK.The characteristics of water loss and pigment degradation of leaves of Xiangyan No.7 during curing were unique.In order to develop the full quality potential of Xiangyan No.7,the curing technique should be formulated according to the curing characteristics of the variety.

关 键 词：烤烟 失水特性 色素降解特性 湘烟7号 烘烤特性 

分 类 号：TS443[农业科学—烟草工业]