Abstract
Abstract Microbial glycolipids produced from renewable sources are of considerable interest in light of their promising biological activities and surfactant characteristics when compared to petroleum derived surfactants. Intense research efforts are currently being made to reduce their production costs and optimize recovery as selected mixtures through downstream processes. Due to the high complexity of natural glycolipid mixtures, efficient purification techniques are also required to examine the biological mechanisms of individual species towards human systems for their application in health-related areas. This review deals with recent advances in the development of glycolipid extraction, fractionation and purification methods, with a particular focus on solid support-free liquid-liquid separation techniques including centrifugal partition chromatography (CPC) and counter-current chromatography (CCC). These techniques offer promising perspectives for the preparative or large-scale separation of glycolipids from complex crude extracts, mainly because of their flexibility in solvent system selection and applicability to a diversity of structures of any polarity.
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