木质纤维素预处理液膜分离脱毒技术研究进展

Research progress on application of membrane separation technology in detoxification of lignocellulosic prehydrolysates

木质纤维素预处理会产生各种抑制物,严重影响后续的酶水解和微生物发酵。因此,对木质纤维素预处理液进行脱毒处理成为木质纤维素高效经济生物转化的前提条件之一。重点介绍了膜分离技术应用于木质纤维素预处理液的脱毒过程所取得的研究进展。这些膜分离技术包括膜萃取、膜吸附、纳滤、反渗透、电渗析、电去离子、膜电容脱盐、渗透汽化和膜蒸馏等。膜分离技术在木质纤维素预处理液脱毒领域具有十分广阔的应用前景。

Pretreatment of lignocellulosic biomass produces a variety of compounds,which significantly inhibit subsequent enzymatic hydrolysis and microbial fermentation.Detoxification of lignocellulosic prehydrolysates becomes a prerequisite for high efficient and cost-effective bioconversion of cellulosic biomass.This review addresses research and development in the detoxification of lignocellulosic prehydrolysates with membrane separation.Those membrane separation technologies include membrane extraction,membrane absorbers,nanofiltration,reverse osmosis,electrodialysis,electrodeionization,membrane capacitive deionization,pervaporation and membrane distillation,etc.Membrane separation technology holds great promise in detoxification of lignocellulosic prehydrolysates.