Results 31 to 40 of about 408,068 (389)

Organosolv lignin aggregation behaviour of soluble lignin extract from Miscanthus x giganteus at different ethanol concentrations and its influence on the lignin esterification

open access: yesChemical and Biological Technologies in Agriculture, 2021
Background Lignin is the second most abundant naturally occurring biopolymer from lignocellulosic biomass. While there are several lignin applications, attempts to add value to lignin are hampered by its inherent complex and heterogenous chemical ...
Muhammad Hazwan Hamzah   +2 more
doaj   +1 more source

A Comparative Assessment of Sea Buckthorn (Hippophae rhamnoides L.) Pruning Waste as a Potential Source of Serotonin

open access: yesBioResources, 2023
Sea buckthorn (Hippophae rhamnoides L.) twigs, remaining after harvesting and pruning, are an underutilized and little-explored biomass resource.
Sarmite Janceva   +6 more
doaj   +2 more sources

Electrochemical Biorefinery toward Chemicals Synthesis and Bio-Oil Upgrading from Lignin

open access: yesEngineering, 2023
Recalcitrance and the inherent heterogeneity of lignin structure are the major bottlenecks to impede the popularization of lignin-based chemicals production processes.
Rui Hu   +7 more
doaj   +1 more source

Lignin as Green Filler in Polymer Composites: Development Methods, Characteristics, and Potential Applications

open access: yesAdvances in Materials Science and Engineering, 2022
After cellulose, lignin is the most commonly used natural polymer in green biomaterials. Pulp and paper mills and emerging cellulosic biorefineries are the main sources of technical lignin.
Muhammad Rasyidur Ridho   +21 more
semanticscholar   +1 more source

Synthesis, Characterization, and Utilization of a Lignin-Based Adsorbent for Effective Removal of Azo Dye from Aqueous Solution [PDF]

open access: yes, 2020
How to effectively remove toxic dyes from the industrial wastewater using a green low-cost lignocellulose-based adsorbent, such as lignin, has become a topic of great interest but remains quite challenging.
Cai, Charles M   +11 more
core   +2 more sources

Silencing CHALCONE SYNTHASE in maize impedes the incorporation of tricin into lignin and increases lignin content [PDF]

open access: yes, 2016
Lignin is a phenolic heteropolymer that is deposited in secondary-thickened cell walls, where it provides mechanical strength. A recent structural characterization of cell walls from monocot species showed that the flavone tricin is part of the native ...
Boerjan, Wout   +12 more
core   +1 more source

Analysis of lignin–carbohydrate and lignin–lignin linkages after hydrolase treatment of xylan–lignin, glucomannan–lignin and glucan–lignin complexes from spruce wood [PDF]

open access: yesPlanta, 2014
Xylan-lignin (XL), glucomannan-lignin (GML) and glucan-lignin (GL) complexes were isolated from spruce wood, hydrolyzed with xylanase or endoglucanase/β-glucosidase, and analyzed by analytical pyrolysis and 2D-NMR. The enzymatic hydrolysis removed most of the polysaccharide moieties in the complexes, and the lignin content and relative abundance of ...
Du, Xueyu   +8 more
openaire   +4 more sources

Improved Lignin Polyurethane Properties with Lewis Acid Treatment [PDF]

open access: yes, 2012
Chemical modification strategies to improve the mechanical properties of lignin-based polyurethanes are presented. We hypothesized that treatment of lignin with Lewis acids would increase the concentration of hydroxyl groups available to react with ...
Chung, Hoyong, Washburn, Newell R.
core   +1 more source

Flammability and Thermal Properties of Rigid Polyurethane Foams Containing Wheat Straw Lignin [PDF]

open access: yes, 2013
Due to development of new generation of biomass processing, the examination of novel lignin products for creation of lignin-containing PU remains actual up to now.
Arshanitsa, Alexandr   +2 more
core   +1 more source

Guidelines for performing lignin-first biorefining

open access: yesEnergy & Environmental Science, 2020
With these guidelines, we aim to unite the lignin-first biorefining research field around best practices for performing or reporting feedstock analysis, reactor design, catalyst performance, and product yields.
M. Abu‐Omar   +9 more
semanticscholar   +1 more source

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