论文部分内容阅读
[Objective]To screen the SFE-CO2extraction technology of volatile oils from Impatiens balsamina,and to discuss the chemical components in the volatile oils of I. balsamina. [Methods]SFE-CO2was used for the extraction of I. balsamina. The extraction temperature,extraction pressure and extraction time were optimized by orthogonal test. Isolation and identification were conducted by GC /MS. [Results]The optimal supercritical extraction technology(SFE) for I. balsamina was as follows: 40 MPa extraction pressure and 40 ℃ extraction temperature; static extraction of I. balsamina was carried out for 30 min,and then dynamic extraction was carried out for 2 h at the flow rate of2. 5 L /min CO2; finally the extracts were isolated and collected. Thus,the light yellow extracts of I. balsamina were obtained. A total of 29natural components were isolated from the extracts of I. balsamina by GC /MS. And 15 natural components were identified. [Conclusions]This method was simple and high efficient for the extraction and analysis of volatile components from I. balsamina.
[Objective] To screen the SFE-CO2extraction technology of volatile oils from Impatiens balsamina, and to discuss the chemical components in the volatile oils of I. balsamina. [Methods] SFE-CO2was used for the extraction of I. balsamina. The extraction temperature , Extraction pressure and extraction time were optimized by orthogonal test. Isolation and identification were conducted by GC / MS. [Results] The optimal supercritical extraction technology (SFE) for I. balsamina was as follows: 40 MPa extraction pressure and 40 ° C extraction temperature ; static extraction of I. balsamina was carried out for 30 min, and then dynamic extraction was carried out for 2 h at the flow rate of 2. 5 L / min CO2; finally the extracts were isolated and collected. Thus, the light yellow extracts of I. balsamina were obtained. A total of 29 natural components were isolated from the extracts of I. balsamina by GC / MS. And 15 natural components were identified. [Conclusions] This method was simple and high efficient fo r the extraction and analysis of volatile components from I. balsamina.