为进一步提高红花大金元烤后烟叶香气质量,以中部烟叶为材料,研究了不同变黄和变筋温度对其香气物质含量的影响.结果表明,类胡萝卜素降解产物、西柏烷类降解产物、苯丙氨酸类降解产物和美拉德反应产物总量以36℃低温或38℃中温变黄和44~46℃低温或46~48℃中温变筋显著高于40℃高温变黄和48~50℃高温变筋处理.在中低温变黄条件下,巨豆三烯酮、西柏三烯二醇、茄酮、吡啶、2-戊基呋喃、苯甲醇、苯乙醛、苯乙醇、邻苯二甲酸二丁酯等致香物质含量均有不同程度提高.在中低温变筋条件下,β-紫罗兰酮、二氢猕猴桃内酯、茄酮、西柏三烯二醇、面包酮、2-戊基呋喃、2-吡啶甲醛、壬醛、吲哚、苯甲醛等致香物质含量均有不同程度提高.而β-大马酮、β-二氢大马酮等致香物质含量受变黄和变筋温度影响不大.%In order to improve the aroma quality of Honghuadajinyuan leaves after curing, effects of different leaf-yellowing and midrib-yellowing temperature on aroma constituents were studied using middle leaves. Results showed that contents of total carotenoid degradation products, cemdrenoid degradation products, phenylalanine degradation products and maillard reaction products of low (36℃) or middle (38℃) leaf-yellowing and low (44-46℃) or middle (46-48℃) midrib-yellowing temperature treatments were higher than high leaf-yellowing (40℃) and midrib-yellowing (48-50℃) temperature treatments. Contents of aroma products such as megastigmatrienones, cembratrien-diols, solanone, pyridine, 2-amyl furan, benzil alcohol, phenylacetaldehyde, phenethyl alcohol and dibutyl phthalate were increased in different degrees under middle and low leaf-yellowing temperature conditions. Contents of aroma products such asβ-ionone, dihydroactinidiolide, solanone, cembratrien-diols, 2-methyltetrahydrofuran-3-one, 2-amyl furan, 2-pyridinecarboxaldehyde, nonyl aldehyde, indole, benzaldehyde were increased in different degrees under middle and low midrib-yellowing temperature conditions. Contents of aroma products such asβ-damascenone,β-damascone were not affected by the leaf-yellowing temperature and midrib-yellowing temperature.
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