威宁烟区'云烟116'烟叶烘烤特性研究
Flue-curing Characteristics of'Yunyan116'in the Weining Tobacco Region
罗运伟 1喻会平 2郜军艺 2李吉红 1周婷婷 1匡鹏飞 1段煜 1艾复清3
作者信息
- 1. 贵州大学 烟草学院,贵州 贵阳 550025
- 2. 贵州省烟草公司毕节市公司,贵州 毕节 551700
- 3. 贵州大学 烟草学院,贵州 贵阳 550025;贵州省烟草品质研究重点实验室,贵州 贵阳 550025
- 折叠
摘要
为探明高海拔烟区'云烟116'的烘烤特性,以提高烤后烟叶质量及经济效益,本研究采用过程取样法,研究贵州威宁中部适熟烟叶烘烤过程中含水量、SPAD值、多酚氧化酶(PPO)活性及主要化学成分的变化.结果表明:烘烤过程中烟叶含水量及SPAD值的下降速率均呈"慢-快-慢"的下降趋势,失水均衡性为 1.2,烘烤至定色前期SPAD值下降率为93.9%,二者均满足易烤性较好的标准;PPO活性在烘烤过程中呈"双峰"曲线变化趋势,其均值为0.35 U,属于耐烤性中等的范围;烘烤过程中,易烤性、耐烤性均与烟叶主要化学成分呈现相关性.综合'云烟116'中部叶的易烤性与耐烤性,其烟叶在威宁烟区的烘烤特性为中等-较好,在烟叶烘烤的变黄后期与定色前期应控制好烤房相对湿度,防止烟叶氧化变棕.
Abstract
To investigate the flue-cured traits of'Yunyan116'in high-altitude tobacco regions and enhance the quality and profitability of cured tobacco leaves,this research employed a process sampling approach to analyze the variations in moisture content,SPAD value,polyphenol oxidase(PPO)activity,and key chemical components of moderately ripe tobacco leaves during the flue-curing process in Weining,Guizhou.The results indicated that the decrease rate of moisture content and SPAD value of tobacco leaves exhibited a'slow-fast-slow'decrease during the flue-curing process,resulting in a water loss balance of 1.2.The SPAD value decreased by 93.9%from flue-curing to the early stage of color setting,meeting the standard for good flue-curing ability.The PPO activity exhibited a'double peak'curve trend while undergoing the flue-curing process,averaging at 0.35 U,falling within the moderate flue-curing resistance range.The ease of curing and resistance to curing during the flue-curing process were both related to the primary chemical components found in tobacco leaves.The tobacco leaves of'Yunyan116'exhibited moderate to good flue-curing characteristics in the Weining tobacco region due to the ease and durability of its middle leaves.During the late yellowing and early coloring stages of tobacco flue-curing,it is crucial to control the relative humidity of the curing room carefully to prevent oxidation and browning of the tobacco leaves.
关键词
'云烟116'/烟叶烘烤/易烤性/耐烤性/化学成分Key words
'Yunyan116'/tobacco leaf flue-curing/easy curing potential/endurable curing potential/chemical component引用本文复制引用
基金项目
贵州大学大学生创新创业训练计划(贵大省创字2021044)
贵州省烟草公司毕节市公司科技项目(2020520500240070)
出版年
2024
NETL
NSTL
万方数据