期刊
BIORESOURCE TECHNOLOGY
卷 331, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.125053
关键词
Lignocellulosic biomass; Combined pretreatment; Fiber degradation; Sugar yield
资金
- Ministry of Higher Education, Research and Innovation (Ministere de l'Enseignement superieur, de la Recherche et de l'Innovation, MESRI) of France
Sustainable biorefinery concepts based on lignocellulosic biomass have attracted global attention, requiring combined biological and chemical/physicochemical pretreatment for substrate preparation. Different combinations of pretreatment methods can effectively mitigate the drawbacks of a single pretreatment step, enhancing fiber degradation and sugar yields.
Sustainable biorefinery concepts based on lignocellulosic biomass are gaining worldwide research interest because of their inexpensiveness and abundance. The recalcitrance of lignocellulosic biomass poses a major hindrance to enhance biofuel production. Therefore, a pretreatment step is critical to prepare the substrates for the downstream process. Combining pretreatment steps help to lower the severity of the drawbacks of a single pretreatment step. This paper systematically reviews the combined biological and chemical/physicochemical pretreatment based on fiber degradation and sugar yield. An energy-efficient biological pretreatment method combined with a chemical pretreatment that accelerates the pretreatment times has been seen to be efficient for fiber degradation and sugar yields. However, fungal species, culture conditions, biomass type, the severity of chemical pretreatment and the order of sequential pretreatment influences the relative component contents and sugar yield. Even the same biomass from different sources undergoing similar pretreatment conditions could result in a varying amount of digestibility.
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