摘要
[目的]采用静态微波真空干燥技术制备烟草内源性固体香料。[方法]对烟草提取物进行静态微波真空干燥，通过对其挥发性成分的分析，以及与不同方法干燥后所得的样品进行比较。[结果]经微波真空干燥后的样品，其成分大部分与干燥前的样品一致，产品品质稳定；对样品进行3种干燥处理，静态微波真空干燥对于烟草重要香味物质的保留更为完整，烟碱含量最低，为56．7％，β－大马酮含量为0．68％，比喷雾干燥（0．25％）和冷冻干燥（0．17％）均有较大提高，分别提升了1．72倍和3．00倍，是较优的干燥方法；三角评吸结果显示，静态微波真空干燥后的样品与原提取物无差异。[结论]该技术运用于烟用香料，不仅不会改变烟草提取物的化学成分，还能延长产品存储时间，为开发高纯度烟用香精香料提供广阔的空间和应用价值。
Abstract
Objective] The aim was to prepare tobacco endogenous solid flavor by vacuum microwave drying technology.[Method] Static mi-crowave vacuum drying was conducted on tobacco extracts, volatile components were analyzed, samples obtained by different drying methods were compared.[Result] The results showed that after vacuum static microwave drying, most of its components were consistent with the sample before drying, product quality remained stable;three drying methods were adopted to process the samples, static vacuum microwave drying could retain most complete tobacco important aroma, nicotine content was lowest as 56.7%,β-damascenone content was 0.68%, compared to spray drying (0.25%) and freeze-dried (0.17%) were greatly improved, which was raised 1.72 and 3.00 times.It was the optimum drying method;The re-sult of triangle smoking showed that the sample under the static vacuum microwave drying was no difference with the original extract.[ Conclu-sion] The technology used in tobacco flavor does not change chemical composition of tobacco extracts, but can extend the storage time of the product.It offers a wide range of space and value to develop the high purity tobacco flavors.
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