丙二醇及其聚合物对烟丝保润效果的影响

Effect of Propylene Glycol and Its Polymer in Cut Tobacco as Humectant

摘要:

为寻找新型烟草保润剂，以丙二醇（PG）为对照，研究了不同聚合度的聚丙二醇（PPG）和PG+PPG组合对烟丝保湿及防潮性能的影响。结果表明，PG+PPG400组合保润剂在相对湿度（40±2）% 和（80±2）%条件下的保湿及防潮效果均极显著优于PG（a=0.01）；在感官质量方面，PG+PPG400优于丙二醇，主要表现在提升卷烟香气和舒适性；PPG400的裂解试验表明，其裂解产物含有多种烟草致香物质及特殊增香酮类、醇类化合物。

Abstract:

In order to find new tobacco humectants，taking Propylene glycol as a control，we studied the effects of PPG and（PG+PPG） group on the moist-keeping and humidity resistance of cut tobacco. The results indicated that PG+PPG400 had better moist-keeping and humidity-resistant effects than propylene glycol under the conditions of RH（40±2）% and RH（80±2）% ，respectively. PG+PPG400 had more advantageous to the improvement of sensory quality（especially aroma and comfort） of cigarette than propylene glycol. The pyrolysis test for PPG400 at 650℃ showed that its cleavage products contained a variety of aroma components in cigarette smoke and some special flavorous ketone and alcohols compounds.