According to the results of single factor investigation, it is preliminarily determined that the separation process of piperine in the supercritical CO2 extract of pepper is: dripping absolute ethanol in a constant temperature water bath at 40℃, the dosage is 1:5 (w/v), and then 1℃/ The cooling rate of 5min is reduced to 0℃, and it is placed at 0℃ for 4h to crystallize.
The sequence of factors affecting the yield of black pepper essential oil is:
CO2 flow rate>extraction temperature>extraction pressure>extraction time; the best extraction conditions are: CO2 flow rate is 22kg/h, extraction pressure is 34MPa, extraction time is 140 minutes, and extraction temperature is 38°C. Under these conditions, the yield of black pepper essential oil is 7. 02%.
Supercritical CO fluid extraction technology is mostly used for the extraction of solid raw materials, but a large number of research practices have proved that supercritical CO2 fluid fractionation technology has more advantages in the extraction and separation of liquid materials.
Including physical photos.
Celery seed oil exists in the cells of seeds, with less oil in the seed coat and more oil in the seed kernels. In order to increase the contact area between CO2 and seeds and reduce the diffusion distance between extractant and extractant in the biological matrix, it is necessary to grind it to the appropriate size according to the raw materials.
Forewrod In the early 20th century, a polyphenol compound was isolated from olive leaves. Oleuropein It has the structure of… Read more »Supercritical CO2 Extraction Of Oleuropein From Olea Europaea Leaves