中国烟草科学2012，Vol.33Issue(1)：69-73,5.DOI:10.3969/j.issn.1007-5119.2012.01.015
烤烟密集烘烤过程中阶梯升温变黄生理生化特性研究
Physiology and Biochemistry Characters of Step Temperature Yellowing during Bulk Curing Process of Tobacco Leaves
摘要
Abstract
The physiology-biochemistry characters of step-temperature yellowing treatment were studied during bulk curing process by using the electric-heated flue-curing barn. The results showed that two obvious amylase activity peaks of step-temperature yellowing treatment appeared in yellowing stage and leaf drying stage, and amylase activity of step-temperature yellowing treatment was higher than 38 ^C yellowing treatment. Polyphenol oxidase (PPO) activity of all the treatments decreased before 7-8 tenth yellow, then it displayed the trend with first increasing followed by decreasing after 7-8 tenth yellow for leaves during curing. And polyphenol oxidase activity of step-temperature yellowing treatment had a smaller variation range, and it was more relatively stable, chorophyll and carotinoid content of step-temperature yellowing treatment declined more than 38 °C Yellowing treatment. Starch of step-temperature yellowing treatment had a faster degradation, and its starch content was less than 38 °C Yellowing treatment during curing process. The step-temperature yellowing treatment was beneficial to increase the accumulation of total sugar and reducing sugar. The total nitrogen and nicotine contents of cured leaves of step-temperature yellowing treatment rose slightly, Which was similar to 38"C yellowing treatment. The step-temperature yellowing treatment was beneficial to improving the quality of tobacco leaf by the comprehensive performance of physiology-biochemistry.关键词
烤烟/密集烘烤/阶梯升温变黄/生理生化Key words
flue-cured tobacco/ bulk curing/ step-temperature yellowing/ physiology biochemistry分类
通用工业技术引用本文复制引用
王爱华,管延斗,訾莹莹,王松峰,管志坤,杨斌,王金亮,孙福山,徐秀红,王传义,王世建..烤烟密集烘烤过程中阶梯升温变黄生理生化特性研究[J].中国烟草科学,2012,33(1):69-73,5.基金项目
国家烟草专卖局科技项目(110200902069) （110200902069）
四川省烟草公司科技项目(200901014) （200901014）
山东省烟草公司科技项目(201011) （201011）
