Laboratório Nacional de Energia e Geologia, I.P., Unidade de Bioenergia, Estrada do Paço do Lumiar 22, 1649-038, Lisboa, Portugal.
Bioresour Technol. 2010 Jul;101(13):4775-800. doi: 10.1016/j.biortech.2010.01.088. Epub 2010 Feb 18.
Hemicelluloses currently represent the largest polysaccharide fraction wasted in most cellulosic ethanol pilot and demonstration plants around the world. The reasons are based on the hemicelluloses heterogeneous polymeric nature and their low fermentability by the most common industrial microbial strains. This paper will review, in a "from field to fuel" approach the various hemicelluloses structures present in lignocellulose, the range of pre-treatment and hydrolysis options including the enzymatic ones, and the role of different microbial strains on process integration aiming to reach a meaningful consolidated bioprocessing. The recent trends, technical barriers and perspectives of future development are highlighted.
目前，在世界上大多数纤维素乙醇中试和示范工厂中，半纤维素是浪费最大的多糖部分。造成这种情况的原因是半纤维素的异质聚合性质及其低发酵性，而这些性质是由最常见的工业微生物菌株决定的。本文将采用“从田间到燃料”的方法，综述木质纤维素中存在的各种半纤维素结构、预处理和水解选择，包括酶法水解，并探讨不同微生物菌株在工艺集成中的作用，以期实现有意义的综合生物加工。本文还重点介绍了最近的发展趋势、技术障碍和未来发展的前景。
