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.
Supercritical CO2 extraction of spices
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%.
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.
Antioxidants, rosemary essential oil, etc. can be extracted from rosemary.The main components of antioxidants are diterpenoids, flavonoids, triterpenoids and other compounds with antioxidant functions; rosemary essential oil is a liquid oil composed of more than 30 volatile components.
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Foreword Supercritical fluid extraction is a new type of extraction and separation technology. It uses a supercritical fluid, that is,… Read More »Supercritical fluid extraction separation technology
Forewords Cinnamon (scientific name: Cinnamomum zeylanicum Bl.) is a plant of the genus Eucalyptus, an evergreen tree, which is a… Read More »Supercritical CO2 extraction of cinnamon essential oil
Forewords Cumin, also known as Cuminum cyminum L., is an annual herb of Cuminum L., which belongs to Umbelliferae. Its… Read More »Supercritical CO2 extraction of cumin essential oil