TY - JOUR
T1 - Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass
AU - Kim, Sun Min
AU - Dien, Bruce S.
AU - Singh, Vijay
N1 - Funding Information:
This work was supported by a grant from National Institute of Food and Agriculture (NIFA) as a part of the NIFA (Hatch) Project No. ILLU-741-373-Processing Corn and Cellulosic Biomass for Food, Fuel and Industrial Products. Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the U.S. Department of Agriculture. USDA is an equal opportunity provider and employer.
Publisher Copyright:
© 2016 Kim et al.
PY - 2016/4/30
Y1 - 2016/4/30
N2 - Production of advanced biofuels from woody and herbaceous feedstocks is moving into commercialization. Biomass needs to be pretreated to overcome the physicochemical properties of biomass that hinder enzyme accessibility, impeding the conversion of the plant cell walls to fermentable sugars. Pretreatment also remains one of the most costly unit operations in the process and among the most critical because it is the source of chemicals that inhibit enzymes and microorganisms and largely determines enzyme loading and sugar yields. Pretreatments are categorized into hydrothermal (aqueous)/chemical, physical, and biological pretreatments, and the mechanistic details of which are briefly outlined in this review. To leverage the synergistic effects of different pretreatment methods, conducting two or more pretreatments consecutively has gained attention. Especially, combining hydrothermal/chemical pretreatment and mechanical refining, a type of physical pretreatment, has the potential to be applied to an industrial plant. Here, the effects of the combined pretreatment (combined hydrothermal/chemical pretreatment and mechanical refining) on energy consumption, physical structure, sugar yields, and enzyme dosage are summarized.
AB - Production of advanced biofuels from woody and herbaceous feedstocks is moving into commercialization. Biomass needs to be pretreated to overcome the physicochemical properties of biomass that hinder enzyme accessibility, impeding the conversion of the plant cell walls to fermentable sugars. Pretreatment also remains one of the most costly unit operations in the process and among the most critical because it is the source of chemicals that inhibit enzymes and microorganisms and largely determines enzyme loading and sugar yields. Pretreatments are categorized into hydrothermal (aqueous)/chemical, physical, and biological pretreatments, and the mechanistic details of which are briefly outlined in this review. To leverage the synergistic effects of different pretreatment methods, conducting two or more pretreatments consecutively has gained attention. Especially, combining hydrothermal/chemical pretreatment and mechanical refining, a type of physical pretreatment, has the potential to be applied to an industrial plant. Here, the effects of the combined pretreatment (combined hydrothermal/chemical pretreatment and mechanical refining) on energy consumption, physical structure, sugar yields, and enzyme dosage are summarized.
KW - Chemical pretreatment
KW - Combined pretreatment
KW - Hydrothermal pretreatment
KW - Lignocellulosic biofuel
KW - Mechanical refining
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U2 - 10.1186/s13068-016-0505-2
DO - 10.1186/s13068-016-0505-2
M3 - Review article
AN - SCOPUS:84992212795
VL - 9
JO - Biotechnology for Biofuels
JF - Biotechnology for Biofuels
SN - 1754-6834
IS - 1
M1 - 97
ER -