滚筒干燥过程中筒壁温度对烟丝理化品质的影响

Effect of different tube wall temperature on physicochemical properties of tobacco shred during drum drying

采用方差分析和多重比较的方法对筒壁温度分别为100,120,140,150℃时烟丝填充值、烟丝弹性、整丝率、石油醚提取物、香味物质、总植物碱及总糖进行差异性分析,并利用主成分分析方法研究理化指标的变化,最后利用感官评价的方法对分析的结果进行验证。结果表明:不同筒壁温度对烟丝理化指标的影响达到显著水平(P<0.05);主成分分析后烟丝理化指标主成分综合得分呈降低趋势;感官评吸的结果与方差分析与主成分分析结果较为一致。

In order to study the effect of different wall temperature on the physicochemical properties of tobacco shred under drum drying conditions, variance analysis and multiple comparisons were conducted to explore the filling value,elasticity,proportion of long strands,the content of petroleum ether,aroma substances,total alkaloid and sugar and of tobacco shred under different drying conditions(drum wall temperatures were 100,120,140,and150℃,respectively).In addition,principal component analysis was performed to identify the changes of physicochemical indexes.Finally,the consequences above were verified by sensory evaluation.The results showed that the difference of physicochemical indexes of tobacco shred under different drying conditions reached 0.05 significant level;the comprehensive score of physicochemical indexes presented a decreasing trend through principal component analysis.The results of sensory evaluation were consistent with those of variance and principal component analyses.