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Recovery of chemically hydrolysed biomass using solvent extraction


Researchers at the JBEI have developed a technology to preferentially produce and extract sugars produced by the direct acid hydrolysis of biomass from an aqueous solution of ionic liquids such as 1-ethyl-3-methylimidaolium chloride. JBEI researchers have extracted over 80% of hexose and pentose sugars, indicating that the JBEI approach is a significant improvement in the field of biomass saccharification using ionic liquid. The JBEI invention uses solvent extraction technology, which is based on the chemical affinity of boronates or other organic acids to complex sugars, to extract sugars from the aqueous phase. Solvent extraction technology has been shown to successfully remove sugars from aqueous solutions in the paper pulping industry. JBEI researchers have optimized this proven technology for the recovery of sugars from biomass pretreatment processes utilizing ionic liquid pretreatment techniques also developed at JBEI.
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