title: Direct dissolution of wet and saliferous marine microalgae by polar ionic liquids without heating.
abstract: We successfully dissolved wet and saliferous microalgae (WSM) in polar ionic liquids (ILs) under mild conditions. The Kamlet-Taft parameters, especially β for the ILs, were good predictors of the ability to dissolve WSM. 1-Ethyl-3-methylimidazolium methylphosphate ([C2mim][MeO(H)PO(2)]) was the IL that best dissolved WSM without heating. WSM (containing 95 wt% water) was mixed with [C2mim][MeO(H)PO(2)]; the WSM had dissolved completely within 30 min at room temperature with gentle stirring. The IL maintained its chemical structure after removal of the microalgae component, suggesting recyclable use. The concentration of contaminant mineral salts in the [C2mim][MeO(H)PO(2)] did not increase with increasing recycle number. The recycled [C2mim][MeO(H)PO(2)] maintained its ability to dissolve WSM regardless of the number of recycling studied here.
authors: Japan Science and Technology Agency (JST), Core Research for Evolutional Science and Technology (CREST), Chiyoda, Tokyo 102-0076, Japan.
authors: Kyoko
authors: K
authors: Fujita
authors: Daigo
authors: D
authors: Kobayashi
authors: Nobuhumi
authors: N
authors: Nakamura
authors: Hiroyuki
authors: H
authors: Ohno
mesh_terms: D056804:Biofuels; D002458:Cell Fractionation; D002498:Centrifugation; D003246:Conservation of Energy Resources; D005618:Fresh Water; D007093:Imidazoles / Q000494:pharmacology*; D007218:Industrial Microbiology / Q000379:methods; D058086:Microalgae / Q000187:drug effects*; D012623:Seawater; D012995:Solubility; D012997:Solvents / Q000494:pharmacology*; D013045:Species Specificity; D013449:Sulfonamides / Q000494:pharmacology*; D046939:Synechocystis / Q000187:drug effects*; D014871:Water Microbiology
chemical_list: C517865:1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide; C499119:1-ethyl-3-methylimidazolium tetrafluoroborate; D056804:Biofuels; D007093:Imidazoles; D012997:Solvents; D013449:Sulfonamides; C518739:1-ethyl-3-methylimidazolium