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众所周知,烟草特有的亚硝胺(ＴＳＮＡ)是在烤烟和白肋烟常规调制的后期积累的。例如烤烟鲜烟中ＴＳＮＡ的含量是可以忽略的。ＴＳＮＡ的含量在变黄期略有增加,但在软片和烟筋干燥后期会急剧增加。
It is well-known that tobacco-specific nitrosamines (TSNAs) accumulate at the later stages of conventional modulation of flue-cured and burley. For example, the content of TSNA in flue-cured tobacco is negligible. The content of TSNA slightly increased during the yellowing period but sharply increased during the late drying period of the film and the smoking bar.