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第 5 期                    张改红,等:  麦芽酚-β-D-葡萄糖苷的便捷合成及其加香应用                                ·1001·


                 由表 2 可知,在 300 ℃下,由于裂解温度相对                     戊酮天然存在于烤烟烟叶、烟气中,具有芳香气味。
            较低,产物组分较少,裂解产物中含量最高的组分                             呋喃酮具有强烈的焙烤焦糖香、果香和菠萝样香气,
            为丙酮(3.64  min),其次为 1,  6-脱水葡萄糖                     广泛用作食品、烟草等的增香剂。从 Py-GC-MS 分
            (23.52 min),未检测到麦芽酚的生成。随着温度                        析结果来看,  麦芽酚糖苷受热能够裂解产生许多香
            的升高,糖苷键断裂生成的麦芽酚明显增多,600、                           味成分,并且在 600 ℃的热裂解情况最好。
            900  ℃下的裂解产物主要是麦芽酚,归一化质量分                          2.4    感官评吸
            数分别为 83.04%和 74.22%。除此之外,还有少量                          添加麦芽酚和麦芽酚糖苷的卷烟评吸结果如表
            的 4-羟基-4-甲基-2-戊酮和呋喃酮。4-羟基-4-甲基-2-                  3 所示。

                                         表 3    添加麦芽酚及其糖苷实验卷烟的评吸结果
                            Table 3    Sensory evaluation of test cigarettes containing maltol or its compound  Ⅳ
                样品        光泽          香气          谐调      杂气       刺激性                   余味
             空白对照        光泽油润    香气淡薄、较粗糙        尚谐调     略有杂气    较有刺激 尚净尚舒适
             加麦芽酚        光泽油润    香气充足、稍粗糙        谐调      无杂气     略有刺激 较净较舒适,前半段香气丰满,后半段香气不足
             加麦芽酚糖苷  光泽油润        香气丰满、细腻         谐调      无杂气     无刺激     纯净舒适,前后香气差异不明显

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