Ionic liquid-based multi-stage sugaring-out extraction of lactic acid from simulated broth and actual lignocellulosic fermentation broth

Abstract

Highlights IL-based sugaring-out extraction was applied to separate LA from fermentation broth Different ILs and saccharides consisting systems were examined The ability to form ATPS is in the order of [Hmim]BF4 ≈ [Bmim]BF4˃[Emim]BF4 The partition behaviors of LA, [Bmim]BF4, and saccharides were evaluated LA recovery of 89.8% was obtained with removal of 68.4% cells and 65.4% pigments

Keywords

• Ionic liquid
• Sugaring-out extraction
• Lactic acid
• Multi-stage
• Fermentation broth