I work on the extraction of lipids from dry microalgae using microwave by ionic liquid (IL). I use 1-ethyl-3-methyl Immidazolium chloride [EMIM][Cl]. I do experiment with the mixture of algae and water and IL put in microwave in a certain time and temperature. Therefore, I use Hexane for recover lipids. My problem is that, why the yield is less?
Dear Sir. Concerning your issue about the extraction of lipid from dry microalgae using microwave assisted extraction with ionic liquid. A study of microwave-assisted extraction of lipid from three algal species in 1-butyl-3- methylimidazolium hydrogen sulfate ([BMIM][HSO4]), an imidazolium-based ionic liquid, was performed by evaluating the effects of microwave irradiation and ionic liquid on the extraction. The experimental results indicated that microwave irradiation could promote the extraction rate over 15 times for Chlorella sorokiniana, several hundred percent for Nannochloropsis salina and over 10 times for Galdieria sulphuraria when compared with the conventional solvent extraction method. [BMIM][HSO4] was an effective ionic liquid for the extraction of lipid from algae. The mineral acids could enhance the extraction of lipid from algae using [BMIM][HSO4]. The lipid product distribution showed not much difference between different species of algae. [BMIM][HSO4] was very stable under the extraction conditions.I think the following below attached file may help you in your analysis:
Thanks
please read these:
Article Microwave-Assisted Extraction of Fucoidan from Marine Algae
www.mdpi.com/2079-7737/7/1/18/pdf