木质纤维素生物炼制及乳酸制备研究进展

Progress of Study on Biorefinery and Preparation Process of Lactic Acid from Lignocellulosic Biomass

生物炼制替代化石炼制是维持化学工业和社会发展的必然要求。介绍了以木质纤维为原料的生物炼制的优势及瓶颈,并从木质纤维基乳酸生物炼制过程涉及的环节出发,包括木质纤维原料预处理技术、酶水解技术、发酵菌株选育以及发酵工艺等,重点对炼制过程中如何提高产率和降低成本及乳酸精制技术国内外研究进展进行综述,为实现其生产工业化提出可供参考的策略。

The replacement of fossil refining with biorefinery is vital for sustaining the growth of the chemical industry and society. In this paper,it summarzes the advantage and bottlenecks of biorefinery using lig-nocellulosic biomass as raw material. Besides,it describes the preparation process of lactic acid from lignocellulosic biomass,including the pretreatment of lignocellulosic biomass, enzymatic hydrolysis, breeding offermentaion stain and fermentation process. Especially it overreviews the research progress both at home and abroad of how to improve yield and reduce the cost in the refining process and the purification technology of lactic acid, so as to provide some references to realize the industrialization of biorefinery production.