烤烟主流烟气一氧化碳的影响因素分析

Effect of Some Chemical and Physical Factors on Carbon Monoxide in Mainstream Smoke of Flue-cured Tobacco

为探讨烤烟主流烟气中CO释放行为的主要影响因素,对63个烤烟样品的14种化学组分及2个物理参数与烤烟主流烟气中CO释放量、CO/Tar及CO每口释放量之间的关系进行了相关分析及因子分析。结果表明,烟支包卷密度、阴燃速率、粗纤维、烟碱、氯、总灰分以及钾、钙、铜、铁等金属元素与烟气CO呈极显著相关;以主成分法从16个指标中提取了6个因子,其中粗纤维-燃烧因子及氯因子与烟气CO呈极显著相关。因此,影响烤烟CO释放行为的主要是阴燃速率、粗纤维及钾、氯元素。

Based on data of 14 chemical constituents and 2 physical parameters of 63 flue-cured tobacco samples, effect of 16 factors on CO yield behavior in mainstream smoke was investigated by correlation analysis and factor analysis. The result showed that wrapped density of rod and smoldering velocity of cigarette rod, crude fiber, nicotine, C1, total ash and some metal elements such as K, Ca, Cu, Fe, had significant correlation （at 0.01 level） with CO yield behavior in mainstream. Six components were extracted by principal component analysis. Fl（named fiber-burning component） had positive significant correlation （at 0.01 level） with CO/Tar and CO/puffs; F5 （named chlorine component） has positive significant correlation （at 0.01 level） with CO yield and CO/puffs. F3 and F6 had positive significant correlation （at 0.05 level） CO/puffs. In conclusion, smoldering velocity of cigarette rod, crude fiber, K and CI have strong influences on CO yield behavior in mainstream smoke of flue-cured tobacco.