野拔子净油提取工艺优化及其在卷烟中的应用效果
Optimization of extreaction conditions for Elsholtzia rugulosa Hemsl.absolute and its application in cigarette
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摘要: 目的优化超声波辅助提取野拔子净油的工艺条件,并分析其在卷烟中的应用效果,为野拔子在卷烟中的进一步应用提供参考依据.方法以野拔子为原料,通过单因素试验和正交试验优化超声波辅助乙醇提取净油的工艺条件,并进行成分分析;将野拔子净油添加至卷烟中,通过卷烟感官评价筛选最佳添加量.结果超声波辅助提取野拔子净油的最佳工艺条件为:提取温度50℃,提取时间40 min,料液比1:9,超声波功率500 W,各因素影响排序为提取温度>超声波功率>料液比>提取时间;经气质联用仪分析鉴定,野拔子净油共鉴定出40种成分,主要含有脱氢香薷酮(28.641%)、3,3-二甲基丙烯酸(9.080%)、5-甲基-2-乙酰基呋喃(4.790%)、芳樟醇(4.224%)、3-甲基-2-(5H)-呋喃酮(3.642%)、氧化芳樟醇(3.079%)、香薷酮(1.436%)、新植二烯(1.031%)等挥发性物质.将野拔子净油应用于卷烟中,具有丰富和协调烟香,能提高香气质,改善吃味,使烟气柔和细腻及减刺除杂等作用,且以3 mg/kg添加量为宜.结论优化条件下超声波辅助提取的野拔子净油对提升卷烟吸食品质有良好效果,可用于卷烟加香和品质的提升.Abstract: ObjectiveProcess conditions of ultrasonic-assisted extraction for absolute from Elsholtzia rugulosa Hemsl.were optimized and its application effects in cigarette were analyzed to provide technical reference for further ap-plication of E.rugulosa in cigarettes.MethodWith E.rugulosa as raw materials,ultrasonic-assisted ethanol extraction conditions were optimized by single factor test and orthogonal experiment.Component analysis was also conducted.After E. rugulosa absolute was added into cigarettes,the optimal adding amount was determined through sensory evaluation.ResultThe optimal conditions for ultrasonic-assisted extraction of E. rugulosa absolute were as follows: extracting at 50℃for 40 min with a solid-liquid ratio of 1:9 under an ultrasonic power of 500 W.The order of influencing factors was:extraction temperature>ultrasonic power>solid-liquid ratio>extraction time. Identified by gas chromatograph-mass spec-trometer(GC/MS),40 components were identified from E.rugulosa absolute,such as dehydroelsholtzia ketone(28.641%), 3,3-dimethylacrylic acid(9.080%),5-methyl-2-acetylfuran(4.790%),linalool(4.224%),3-methyl-2(5H)-furanone(3.642%), linalool oxide(3.079%),elsholtzia ketone(1.436%),neophytadiene(1.031%),etc.The result showed that the optimum amount of E.rugulosa absolute in cigarette was 3 mg/kg,which could enrich and coordinate the cigarette aroma,improve aroma quality and taste,make the smoke soft and fine,reduce the irritating sense and remove impurities.ConclusionE.rugulosa absolute extracted by optimized ultrasonic-assisted method can improve smoking quality of cigarette.Hence it is available for flavoring and quality improvement of cigarette.