烟草植醇热裂解产物研究

为了研究植醇热裂解产物对卷烟品质的影响,利用热裂解-气相色谱/质谱法模拟植醇在卷烟燃吸过程中产物的变化情况;研究了在不同气体氛围(N2氛围,含10%O2的N2氛围)和不同裂解温度(300℃,600℃,900℃)条件下,植醇的裂解产物和对卷烟品质的影响,并对机理进行了初步的探讨。结果表明,植醇的主要裂解产物是新植二烯等烯烃类化合物,同时还生成了醇类、醛类、酮类、芳香烃等化合物,这些物质随裂解温度和气体氛围的不同其含量有所差异。

Researches on Phytol Pyrolysates in Tobacco

To study the effects of phytol pyrolysates on cigarette quality,the gas chromatography /mass spectrometry( GC / MS) with pyrolyzer was used to simulate the changes of phytol pyrolysates in a burning cigarette; the pyrolysates were investigated in N2 or 10% O2 in N2condition at three different temperature levels of 300℃,600℃,900℃,respectively,and the mechanism was also discussed. The results showed that the major pyrolysates of phytol were alkenes such as Neophytadiene,and other pyrolysates were alcohols,aldehydes,ketones,aromatic hydrocarbons and so on,the relative contents of these compounds changed with different temperature and atmosphere.