Laboratory of Environmental Biotechnology, Department of Botany, A. I. Jat H. M. College, Rohtak 124001, Haryana, India.
Institute of Environmental Studies, Kurukshetra University, Kurukshetra 136119, Haryana, India.
Carbohydr Polym. 2015 Mar 6;117:624-631. doi: 10.1016/j.carbpol.2014.10.012. Epub 2014 Oct 22.
Lignocellulosic materials can be explored as one of the sustainable substrates for bioethanol production through microbial intervention as they are abundant, cheap and renewable. But at the same time, their recalcitrant structure makes the conversion process more cumbersome owing to their chemical composition which adversely affects the efficiency of bioethanol production. Therefore, the technical approaches to overcome recalcitrance of biomass feedstock has been developed to remove the barriers with the help of pretreatment methods which make cellulose more accessible to the hydrolytic enzymes, secreted by the microorganisms, for its conversion to glucose. Pretreatment of lignocellulosic biomass in cost effective manner is a major challenge to bioethanol technology research and development. Hence, in this review, we have discussed various aspects of three commonly used pretreatment methods, viz., steam explosion, acid and alkaline, applied on various lignocellulosic biomasses to augment their digestibility alongwith the challenges associated with their processing.
木质纤维素材料可以作为生物乙醇生产的可持续底物之一，通过微生物干预来探索，因为它们丰富、廉价且可再生。但与此同时，由于其化学成分，它们的顽固结构使转化过程更加繁琐，从而降低了生物乙醇生产的效率。因此，已经开发了克服生物质原料顽固性的技术方法，通过预处理方法来消除障碍，使纤维素更容易被微生物分泌的水解酶转化为葡萄糖。以具有成本效益的方式预处理木质纤维素生物质是生物乙醇技术研发的主要挑战。因此，在这篇综述中，我们讨论了三种常用预处理方法（蒸汽爆破、酸处理和碱处理）的各个方面，以及它们在各种木质纤维素生物质上的应用，以提高它们的消化率，同时讨论了与它们的处理相关的挑战。
