加热模式对薄荷型加热卷烟中主要成分的转移率及逐口释放行为的影响

【目的】考察不同加热模式下薄荷型加热卷烟烟气中主要成分释放量及转移率变化情况。【方法】以3种不同加热模式的烟具HTP1（内芯刀片加热）、HTP2（外围加热）、HTP3、HTP4、HTP5（内芯针式加热）和10款对应的薄荷型加热卷烟为研究对象，分析烟支中薄荷醇、烟碱和甘油的含量分布和在加拿大深度抽吸（HCI）模式下烟气中薄荷醇、烟碱和甘油的转移率和逐口释放量变化。【结果】(1)薄荷醇转移率与烟具加热温度、加热模式及烟支中薄荷醇添加位置等因素有关，内芯刀片式加热卷烟、外围加热卷烟、内芯针式加热卷烟的薄荷醇转移率分别为27.45%～30.27%、15.81%～17.48%和13.39%～26.36%，内芯刀片加热卷烟的薄荷醇转移率高于其他样品。(2)内芯刀片式加热卷烟薄荷醇逐口释放量均呈先上升后稳定再下降的趋势，不同薄荷强度口味样品中薄荷醇释放量有较明显差异；外围加热卷烟薄荷醇逐口释放量均呈先上升后快速下降的趋势，内芯针式加热卷烟薄荷醇释放量则是先上升后缓慢下降。(3)内芯刀片加热卷烟的烟碱和甘油转移率高于其他样品。(4)内芯刀片加热方式结合有序排列薄片的组合，其烟气中薄荷醇、烟碱和甘油的逐...

Effects of heating mode on the transfer rate and puff-by-puff release of main components in mentholated heated tobacco products

Mentholated electrically heated tobacco product (e-HTP) as a typical e-HTP consumable account for a certain market share in many countries. However, there are few studies on menthol content in e-HTPs and the effect of heating mode on menthol transfer rate. In order to investigate the menthol content of the e-HTPs and the transfer rate of menthol from heatstick to the smoke, 10 samples of mentholated e-HTPs with three kinds of commercial heating devices (Internal Blade Heating HTP1, Peripheral Heating HTP2 and Internal Needle Heating HTP3, HTP4 and HTP5) were studied under HCI puffing regime. In addition, the puff-by-puff release of menthol was measured. The results showed that: (1) The transfer rate of menthol was related to heating temperature, heating mode and distribution of menthol in heatsticks, transfer rate of HTP1s ranged from 27.45%-30.27%, transfer rate of HTP2s ranged from 15.81%-17.48%, transfer rate of HTP3, HTP4 and HTP5s ranged from 13.39%-26.36%, transfer rate of HTP1s under internal blade heating was higher than under other heating modes; and (2) The puff-by-puff release of menthol in HTP1 smoke increased first, then stabilized and finally decreased. The release amount of menthol in the samples with different menthol strength was obviously graded. The release of menthol in HTP2 smoke increased first and then decreased rapidly. The release of menthol in HTP3, HTP4 and HTP5 smoke increased first and then decreased slowly. (3) Transfer rate of nicotine and glycerol was higher in HTP1s than in the others; (4) On the whole, the combination of the internal blade heating and the orderly folded tobacco sheet leads to stable puff-by-puff release amounts of nicotine, glycerin and menthol.