自然醇化过程中白肋烟叶TSNAs含量的变化  

Variation of Tobacco-specific N-nitrosamines in Burley Tobacco Leaves During Aging

作　　者：徐安传[1] 

机构地区：[1]红云红河烟草(集团)有限责任公司,昆明市五华区红锦路367号650231

出　　处：《烟草科技》2014年第5期72-75,共4页Tobacco Science & Technology

摘　　要：为了明晰白肋烟叶自然醇化期间烟草特有Ⅳ-亚硝胺（TSNAs）主要种类含量的变化规律，以主栽白肋烟品种TN86，TN90上部和中部烟叶为研究对象，跟踪测定了白肋烟叶自然醇化期间NAB，NAT，NNK和NNN的含量。结果表明：①与开始醇化时对应的白肋烟叶相比，醇化6，9，12，18，24和27个月后的白肋烟叶NAB，NAT和NNN含量均明显增加；而其NNK含量只在醇化6，18，24和27个月时明显增加，醇化9个月的烟叶NNK含量有所减少，醇化12个月的烟叶NNK含量变化因其品种和部位不同有较大差异。②白肋烟叶在自然醇化0～18个月期间，NAB和NAT含量随醇化时间延长逐渐增加，18个月时达到最高；18～27个月时含量又逐渐降低。③自然醇化0～27个月间，白肋烟NNN含量的变化规律因品种和部位不同而有所差异。For investigating the variation rule of the contents of main tobacco-specific N-nitrosamines （TSNAs） in burley tobacco leaves during aging, the contents of NAB, NAT, NNK and NNN were regularly determined by taking the upper and middle leaves of major burley tobacco cultivars, TN86 and TN90, as experimental material. The results showed that： l） Comparing with their initial contents in leaves, NAB, NAT and NNN increased evidently after aging for 6, 9, 12, 18, 24 and 27 months; NNK increased obviously after aging for 6, 18, 24 and 27 months, while decreased slightly after aging for 9 months, the variation of NNK content after aging for 12 months significantly differed in dependence on tobacco varieties and stalk positions. 2） The contents of NAB and NAT increased gradually with the prolongation of aging time during 0-18 months, which reached their maximum in the 18th month, after that decreased gradually. 3） The variation of NNN content varied with tobacco varieties and stalk positions during aging for 0-27 months.

关 键 词：白肋烟 自然醇化 烟草特有N-亚硝胺(TSNAs) 

分 类 号：TS411.1[农业科学—烟草工业]