Lignocelluloses consist of the biopolymers of cellulose, hemicellulose, and lignin that form a natural structural matrix. Representing one of the most abundant renewable natural resources, the availability of lignocelluloses does not necessarily impact the environment and land use. The substitution of traditional fossil resources by the three major biopolymers as sustainable feedstock has been extensively investigated for the manufacture of high value-added products including biofuels, commodity chemicals, bio-based functional materials, and heterogeneous catalysts that could be directly applied for promoting the manufacturing processes. Effective separation and conversion techniques would play a significant role in economic viability of manufacturing these products from the lignocellulosic feedstock.

Aiming at improving the conversion effectiveness or developing innovative techniques for new value-added products, this special issue was conceived for the collection of studies on state-of-the-art techniques developed specifically for producing chemicals, materials, and catalysts from the lignocellulosic feedstock. At the meantime, discussion on related topics in terms of addressing recent advances and assessing and promising the prospect of new methods or new technological strategies to be used in the process will be also encouraged.

Potential topics include but are not limited to the following:

• Pretreatment techniques for an efficient separation of natural biopolymers from the lignocellulosic feedstock
• Chemical, physical, or biological modification of the lignocellulosic biopolymers for quality-upgrading or property improvement
• Chemical and physical preparation of functional polymers or composites from lignocellulosic feedstock
• Synthesis of carbon solid catalysts from lignocellulosic feedstock for biomass conversion into high value-added products
• Catalytic or biological conversion of the lignocelluloses for fuel and chemical monomers
• New methods for depolymerization of lignocellulosic polymers
• Lignocellulosic nanomaterials