干姜的超临界萃取及其萃取物在卷烟中的应用

为了开发新型烟用香原料,用超临界萃取和水蒸气蒸馏的方法提取干姜萃取物,优化了超临界萃取工艺,用GC/MS法分析了萃取物中的主要成分,并将萃取物用于卷烟中。结果表明:①干姜超临界萃取的最佳工艺是,萃取压力30MPa,萃取温度55℃,萃取时间2h,CO2流量为2.5L/min,分离压力8MPa,分离温度45℃,在该工艺条件下萃取物得率为2.48%;②两种提取方法得到的萃取物有十八种共有成分,主要是姜烯、醛、酯类等,超临界萃取物成分更多,生姜特征香气更浓;③超临界萃取物应用于卷烟,具有改善香气质和香气量、丰富烟香、改善口感的作用,效果明显比水蒸气蒸馏萃取物好,更适合用作烟用香料。

Supercritical Fluid Extraction of Rhizoma Zingiberis and its Application in Cigarette

Dry Rhizoma Zingiberis was extracted by Supercritical Fluid Extractlon（SFE） and Steam Distillation（SD）. and the technology of SFE was optimized. The obtained extraction was analysed by GC/MS, and applied in cigarette. The results show that： （1）the optimum extraction conditions were： extraction pressure 30 MPa. extraction temperature 55 C. extraction time 2 h, flow of CO2 2.5 L/min, separation pressure 8 MPa, separation temperatrue 45℃. Under these conditions, the obtained yield was 2.48% ; （2）compared to steam distillation, eighteen components such as Zingiberene. Estersm, Aldehydes etc. were found in the extractions by both methods, but SFE extraction has more characteristic flavor eomponents;（3）ginger SFE extraction could enrich aroma, improve taste, and was more suitable as cigarette flavor.