论文部分内容阅读
[Objective] The research aimed to optimize the best extraction technology of ferulic acid in Angelica sinensis(Oliv.) Diels.[Method] The active ingredients in A.sinensis were extracted by using supercritical CO2 extraction technology.The effects of particle size,extraction pressure,extraction temperature,separation temperature on the extraction rate of volatile oil and ferulic acid were investigated.And their contents were determined by using high performance liquid chromatogram.[Result] The optimized technology parameter of extracting volatile oil from A.sinensis by using supercritical CO2 extraction technology were as follows:the particle size of 30,extraction pressure of 28MPa,extraction temperature of 35℃,separation temperature of 45℃ and the separation pressure of 6MPa.The optimized technology parameter of extracting ferulic acid from A.sinensis by using supercritical CO2 extraction technology were as follows:the particle size of 10,the extraction pressure of 22MPa,extraction temperature of 35℃,separation temperature of 40℃ and the separation pressure of 6MPa.CO2 flow was 20 L/h and the extraction time was 2 h.[Conclusion] The optimized process of the active ingredients in A.sinensis had higher extraction rate and the efficacy components were retained better.
[Objective] The research aimed to optimize the best extraction technology of ferulic acid in Angelica sinensis (Oliv.) Diels. [Method] The active ingredients in A.sinensis were extracted by using supercritical CO2 extraction technology. The effects of particle size, extraction pressure, extraction temperature, separation temperature on the extraction rate of volatile oil and ferulic acid were investigated. And their contents are determined by using high performance liquid chromatogram. [Result] The optimized technology parameter of extracting volatile oil from A.sinensis by using supercritical CO2 extraction technology were as follows: the particle size of 30, extraction pressure of 28 MPa, extraction temperature of 35 ° C., separation temperature of 45 ° C. and the separation pressure of 6 MPa. The optimized technology parameter of extracting ferulic acid from A.sinensis by using supercritical CO2 extraction technology were as follows: the particle size of 10, the extraction pressure of 22 MPa, extraction temperature of 35 ° C., separation temperature of 40 ° C. and the separation pressure of 6 MPa. CO 2 flow was 20 L / h and the extraction time was 2 h. [Conclusion] The optimized process of the active ingredients in A.sinensis had higher extraction rate and the efficacy components were retained better.