摘要
乙醇是全球使用最多的生物燃料,丰富的纤维素原料使生物燃料的生产具有很大的前景。生物质原料具有很多优点,但由于其韧性会导致工艺过程复杂并且成本昂贵。通过构造新纤维素水解酶体系、改造戊糖发酵工业中耐受抑制剂的酵母菌株以及结合最优一体化过程,显著改善了发酵工艺过程。中试试验为大规模研究做了基础。此文总结了近几年这一领域的研究进展,包括中试规模试验和生产过程对经济与环境的影响。
Ethanol accounts for the majority of biofuel use worldwide, and the prospect of its biological production fromabundant lignocellulosic feedstocks is attractive. The recalcitrance of these rawmaterials still renders proposed processes complex and costly, but there are grounds for optimism. The application of new, engineered enzyme systems for celluloseh ydrolysis, the construction of inhibitor-tolerant pentose-fermenting industrial yeast strains, combined with optimized process integration promise significant improvements. The opportunity to test these advances in pilot plants paves the way for large-scale units. This review summarizes recent progress in this field, including the validation at pilot scale, and the economic and environmental impacts of this production pathway.
出处
《发酵科技通讯》
CAS
2011年第3期38-42,共5页
Bulletin of Fermentation Science and Technology
