摘要
金银花作为一种可食用的天然物质,其挥发油被广泛应用于食品、药品、化妆品和香烟.文章依据金银花中的各挥发性组分在不同温度点具有不同的饱和蒸汽压,通过构建多级冷凝装置将各挥发性组分多级冷凝在不同的捕集管中.系统地讨论冷凝温度范围、样品蒸发温度和载气流量等对多级捕集过程的影响.结果表明,最佳实验条件:冷凝温度范围在6℃~-61℃,样品烘烤温度150℃,载气流量1000mL/min.利用GC-MS从捕获管中共分析出32种主要成分(包括4个有机酸、7个酚类、8个酮类、3个醇类、2个醛类、2酯类和6个杂环类化合物等).更重要的是,采用多级冷凝技术可一步实现57.14%的苯甲醛和68.14%的环己酮粗分离.因此,多级冷凝可作为一种潜在的粗分与回收技术应用于天然产物.
As an edible natural perfume,the volatile oil of honeysuckle is widely applied in foods,pharmaceuticals,cosmet-ics and cigarettes.Herein,a fractional condensation device is constructed to analyze the volatile components in honeysuckle,which are condensed in different capture tubes based on their different saturated vapor pressures at different temperatures.In our experiment,the influences of condensation temperature range,sample evaporates temperature,and carrier gas flow rate on the capture process are discussed systematically.The optimal conditions are as follows:the condensation temperature range is between 6℃and-61℃,baking temperature is 150℃,and carrier gas flow rate is 1000 mL/min.The as-obtained volatile compounds in capture tubes are analyzed by GC-MS.The results show 32 important components(4 organic acids,7 phenols,8 ketones,3 alcohols,2 aldehydes,2 esters and 6 miscellaneous,etc.)are obtained from different capture tubes under the op-timal conditions.Importantly,these volatile components can be recovered for further purification,57.14%benzaldehyde and 68.14%cyclohexanone were separated and recycled by one step in fraction condensation device.Therefore,the fractional con-densation could be a promising method for separation and recycle some volatile components from natural plants.
作者
马飞
赖玥华
黄颂
刘旎璇
段春娜
MA Fei;LAI Yuehua;HUANG Song;LIU Nixuan;DUAN Chunna(Jiangxi Provincial Key Laboratory for Low-Carbon Cycle Technology of Municipal Solid Waste,School of Geography and Environmental Engineering,Gannan Normal University,Guanzhou 341000,China)
出处
《赣南师范大学学报》
2022年第6期77-82,共6页
Journal of Gannan Normal University
基金
江西省教育厅资助项目(GJJ201418)。
关键词
金银花
挥发性物质
多级冷凝
分布特征
GC-MS
Honeysuckle(Lonicera japonica)
volatile substances
fractional condensation
distribution characteristics
GC-MS
