湖南农业大学学报（自然科学版）2017，Vol.43Issue(6)：620-625,6.DOI:10.13331/j.cnki.jhau.2017.06.008
稻作烟区不同素质上部鲜烟叶烘烤特性研究
Curing characteristics of different quality fresh upper leaves from paddy-tobacco growing area
摘要
Abstract
In order to clarify the curing characteristics of upper tobacco leaves from paddy-tobacco growing area in southern China, the characteristics of yellowing, browning, water loss, chlorophyll degradation and polyphenol oxidase(PPO) activity of different quality fresh upper leaves were studied by using dark chamber and electric-heated flue-curing barn. The results showed that: The yellowing index of 4 quality leaves, namely, normal tobacco leaves,"slow-yellowing" tobacco leaves, "fast-yellowing" tobacco leaves and "premature senescence and pale" tobacco leaves were 1.58, 1.53, 1.60, 1.58, separately; the browning index of 4 qualities were 0.18, 0.13, 0.17, 0.33, separately; the proportionality of water loss rate of 4 qualities were 0.45, 0.61, 0.43, 0.43, separately; the degradation amount of chlorophyll of 4 qualities were 90.73%, 85.33%, 92.48%, 95.42%, separately; the degradation rate of chlorophyll of 4 qualities were1.26%/h, 1.19%/h, 1.30%/h, 1.33%/h, separately; the average value of PPO activity of 4 qualities were 0.21, 0.15, 0.23, 0.45 U, separately; yellowing and water loss of normal tobacco leaves, "fast-yellowing" tobacco leaves and "premature senescence and pale" tobacco leaves were quickly and curing of these leaves was easy,"slow-yellowing" tobacco leaves yellowed slowly and water loss was hard to obtain, the easy curing potential for"slow-yellowing" was medium; browning of normal tobacco leaves, "slow-yellowing" tobacco leaves and"fast-yellowing" tobacco leaves were slowly, their PPO activity were low and the endurable curing potential were good;browning of "premature senescence and pale" tobacco leaves was easily, its PPO activity was high and the endurablecuring potential was medium.关键词
烤烟/上部鲜烟叶/烘烤特性/稻作烟区Key words
flue-cured tobacco/fresh upper tobacco leaves/curing characteristics/paddy-tobacco growing area分类
农业科技引用本文复制引用
邓小华,文伟,裴晓东,何命军,李帆,黄松青,彭孟祥,段美珍,肖志君..稻作烟区不同素质上部鲜烟叶烘烤特性研究[J].湖南农业大学学报（自然科学版）,2017,43(6):620-625,6.基金项目
湖南省烟草公司长沙市公司科技项目(CYKJ2015-03) （CYKJ2015-03）
