关键词: 松散回潮, 回风温度, 常规化学成分, 中性致香物质

Abstract: In order to improve the inner quality of cigarette and upgrade its utilization value, this experiment studied and analyzed the routine chemical components and content of neutral aroma substances in tobacco leaves using ordering cylinder and different recirculated air temperatures. The result showed that: ①  In terms of routine chemical components, two difference of sugar was high and ratio of potassium to chlorine and sugar-nicotine ratio were low, when recirculated air temperature was 57℃. The chlorine was high and ratio of potassium to chlorine and proportion of nitrogen to nicotine were low, when recirculated air temperature was 62℃. The chemical composition of recirculated air temperature 57℃ was more in line with the requirements of high quality tobacco leaves. ② In terms of neutral aroma substances, the total amount shown as: 57℃＞62℃＞52℃. Within certain scope, the bigger the aroma quantity, the more expression of aroma characteristics.  Different recirculated air temperatures had unanimous influence on routine chemical components and neutral aroma substances.

Key words: ordering cylinder, recirculated air temperature, routine chemical components, neutral aroma substances