Extraction of polysaccharides from bran with phosphonate or phosphinate-derived ionic liquids under short mixing time and low temperature

Abstract

A novel series of 1-alkyl-3-methylimidazolium phosphonate and phosphinate-type ionic liquids is able to extract polysaccharides from bran, which is a renewable biomass. In particular, 1-ethyl-3-methylimidazolium phosphinate is a novel low viscosity polar ionic liquid with which one can extract a series of polysaccharides from bran without heating. The physico-chemical properties of a series of these salts are also determined, in a study of the ability of these ionic liquids to extract cellulose and other polysaccharides from bran.