Development and application of flavoring gel filter rod based on filter temperature during puffing

In order to develop a flavoring gel adapted to the temperature change of cigarette filter during smoking and to promote the aroma holding and releasing capacity of the cigarette, the material characteristics of a carrying gel were analyzed by thermogravimetric analysis and differential thermal analysis. The carrying gel was made into filter rod during cigarette manufacturing. The aroma holding and releasing capacity of the gel filter rod were analyzed by headspace solid phase microextraction and gas chromatography/mass spectrometry (HS-SPME/GC-MS). The results showed that: 1) The temperature sensing design of the gel filter rod was consistent with the temperature change of the filter during smoking, and its loading rate and thermal stability fulfilled the target design requirements. 2) During smoking, the release of characteristic aroma components increased with the increase of puffing number, and the aroma release capacity met the stated goal. 3) The cigarette samples assembled with the gel filter tended to be stable after aging for about 10 days, and its aroma holding stability still reached 76.7% after storing for 180 days, which indicated that the samples had good aroma holding capacity.