| In this paper, the MAE device, extraction mode, principle, parameter optimization and the research progress was briefly introduced. The application of MAE used in the sample pretreatment of some fields was summarized. The main contents are summarized as follows:(1)Originality, the ordinary household microwave ovens was modified as microwave assisted extraction solvent-free devices ,esential oil from Folium Artemisiae argyi was extracted by SFME . Compared to SD , the yield of esential oil was increased from 0.96% to 1.15% under the optimized SFME parameters and the consumed time was reduced to 60 min, which was 1/8 of the SD method. The GC-MS showed the similar composition of esential oil obtained by the two methods . It can be defined the the SFME is a non-pollution,rapid and high yield new method for the essential oil extraction from fresh plants .(2)The modified microwave assisted extraction solvent-free devices was used for the esential oil extraction from Cinnamom camphora L. leaves on the same tree in different seasons , the content of esential oil was : summer (7‰)> autumn(6.76‰)>winter(3.2‰)>spring (2.75‰), provide the reference for the bese use of Cinnamom camphora L.leaves; and the GC-MS was used for the analyse of esential oil composition gained in different seasons.(3)The MAE-SPME and SPME were applied to analyse the volatile compounds of Syringa oblata. The results showed that the fresh flower can release out denser fragrance component as well as more the fragrance component can be determinated . Aroma composition of Syringa oblata. in different time, different florescence and different physiology organization parts was analysed with the optimized MAE-SPME parameters(microwave power:700 W,extraction consumed-time:60s). The main volatile compositions of Syringa oblata flowers tissues are Lilac aldehyde B, Lilac aldehyde A, Lilac aldehyde D, Lilac alcohol A, Lilac alcohol B, Lilac alcohol C, Lilac alcohol D, Lilac aldehyde C. The MAE-SPME-GC-MS provides the experiment basis for the analyses of the component of other fresh plants.(4)Based on the SFME, theβ-Linalool and Benzyl acetate from Edgeworthia chrysantha Lindl. were quantified by the external calibration curves with the help of SPME. The optimized MAE parameters were: microwave power :700 W,extraction consumed-time : 10 min. The content ofβ-Linalool and Benzyl acetate was 0.146μg/g and 0.355μg/g respectively. The SFME-SPME, which shows good replicate and recovery analyses, is a quick, convenience, accurate method for the quantitative analysis of the minim aroma compounds in plants. |
