富硒烟叶对烟气有害成分释放量作用分析

Effect of selenium-enriched tobacco leaves on harmful components delivery in cigarette smoke

测定分析了天然富硒烟叶、外加硒的烟叶、盆栽富硒烟叶卷烟烟气中主要有害成分释放量,结果表明硒元素对烟气主要有害成分释放量具有抑制作用。(1)以天然富硒白肋烟为原料的卷烟可降低烟气中苯并[a]芘、TSNA、氨的释放量,以天然富硒烤烟为原料的卷烟可降低烟气中B[a]P、HCN、巴豆醛的释放量,但烟气中苯酚等的释放量稍有增加。(2)在卷烟工业过程中外加有机硒10μg.cig-1或无机硒2μg.cig-1均可明显降低烟气B[a]P、NNK、NNN、NAB、氢氰酸、氨等的释放量。(3)农业生产过程中外源施硒可降低烟气中苯酚、巴豆醛、HCN、氨等的释放量,但同时可增加烟气中CO、NNK的释放量。综合来看,卷烟工业过程中外源加硒可降低烟气有害成分释放量。

Harmful components in cigarette smoke from selenium-enriched tobacco leaves were measured and analyzed. These selenium- enriched tobacco leaves were either naturally grown in field or through spiking, or through pot experiment. Results indicated that： （1） Using natural selenium-enriched bufley tobacco as raw material reduced B（a）P, TSNA, and NH3 delivery, while natural grown selenium-enriched flue-cured tobacco leaves reduced B（a）P, HCN and crotonic aldehyde delivery. （2） Adding organic selenium at 10μg.cig-1 or inorganic selenium at 2 μg.cig-1 in cigarette blend reduced B（a）P, NNK, NNN, NAB, HCN and NH3 delivery. （3） Fertilizing exogenous selenium during agricultural process resulted in reduced yield of phenol, crotonic aldehyde, HCN, NH3, but increased yield of CO and NNK. In summary, adding selenium can be considered as a positive measure to reduce harmful effect of cigarette smoke.