Lignocellulosic biomass, as a sustainable bioenergy source, can be used to supplement
fossil fuel. However, the utilization of lignocellulosic biomass for energy production
has not been widely applied because of the complicated and stable structure of plant cell
wall. Hydrothermal pretreatment of lignocellulosic biomass is an efficient method to disrupt
lignin and hemicellulose and expose cellulose. Nowadays, many literatures demonstrated the
mechanisms of hydrothermal pretreatment and the change of lignocellulosic biomass (including
cellulose, hemicellulose and lignin) during hydrothermal pretreatment. Up to now,
however, there is no review on this field. This paper reviews the research effort on hydrothermal
pretreatment of lignocellulosic biomass and explains how the hydrothermal pretreatment
affects the properties of lignocellulosic biomass. This review puts emphasis on the
detailed changes of cellulose, hemicellulose and lignin during hydrothermal pretreatment. In addition, the future
research directions are also prospected.
Keywords: Hydrothermal pretreatment, lignocellulosic biomass, cellulose, hemicellulose, lignin.
Rights & PermissionsPrintExport