气流干燥工序加工强度对烤烟烟叶感官质量的影响

为明确气流干燥工序加工强度对烤烟烟叶感官质量的作用特点,寻求气流干燥工序加工烤烟烟叶的适宜条件,以国内外主要烟叶产区的烤烟烟叶为试验材料,采用对比评吸法比较了气流干燥工序不同加工强度条件下的烤烟烟叶感官质量变化。结果表明,气流干燥工序低加工强度处理的烤烟烟叶香气风格不变的样品比例最高,达96%,随着工序加工强度的增大,烤烟烟叶香气风格变化的样品比例逐渐升高;香气质、香气量、杂气、浓度、细腻程度、刺激性改善的烟叶样品比例先升高后降低,其中,以加工强度2为最高,分别达到49%、25%、72%、18%、62%、23%;劲头改善的烟叶样品比例逐渐升高,最高达到9%;干燥感和干净程度改善的烟叶样品比例逐渐降低,最高分别达到13%和35%;香气特性、烟气特性和口感特性各指标变差的烟叶样品比例逐渐升高。在加工强度1～2(工作风温为200～220℃)下,感官质量保持不变和有所改善的烟叶样品比例显著大于感官质量变差的烟叶样品比例;在加工强度1～2范围内设置气流干燥工序,有利于保持和改善烤烟烟叶感官质量。

Effect of Pneumatic Drying Process Intensity on Sensor Quality of Flue-cured Tobacco Leaf

In order to study the effect of pneumatic drying process on sensor quality of flue-cured tobacco leaf and find the suitable processing conditions,the flue-cured tobacco leaf from major domestic and foreign production areas were treated by pneumatic drying process with different processing intensity and the sensor quality of tobacco leaf was evaluated and compared.The results showed almost 96% flue-cured tobacco samples which were treated by pneumatic drying process with the first processing intensity remained the same aromatic style;With an increase of the pneumatic drying process intensity,the proportion of flue-cured tobacco sample whose aromatic style changed increased gradually.The proportion with aroma quality,volume of aroma,offensive taste,smoke concentration,smoke smooth and irritation improved respectively first increased and then decreased gradually,including the highest ones under the second processing intensity as follows:49%,25%,72%,18%,62% and 23%;The proportion of flue-cured tobacco leaf of which physiological strength improved increased gradually,and the highest proportion was 9%;The proportion of flue-cured tobacco leaf of which dryness and cleanness improved decreased gradually,and the highest proportion was 13% and 35%;The proportion of flue-cured tobacco leaf whose aroma characteristics,smoke characteristics,and taste characteristics deteriorated increased gradually.In summary,under the range of first to second processing intensity(air temperature 200-220 ℃),the proportion of flue-cured tobacco leaf whose sensor quality improved and remained was significantly higher than that whose sensor quality deteriorated.The pneumatic drying process setting between the first and second processing intensity is beneficial to maintain and improve the sensor quality of flue-cured tobacco leaf.