Search
Now showing items 81-90 of 91
Hemicelluloses obtaining from rapeseed cake residue generated in the biodiesel production process
(2010-03-25)
[EN]The processing of rapeseed oil seeds for biodiesel production generates huge amounts of lignocellulosiccake residue mainly composed by cellulose, hemicelluloses and lignin. In this work, the valorisation ofthese ...
Physicochemical properties of PLA lignin blends
(2014-01-12)
Commercial alkali lignin (CL) and lignin extracted from almond shells by organosolv process (OL) were
used for the preparation of blends with poly(lactic acid) (PLA) with different percentages (0.5, 1, 5, 10 and
20%) by ...
Simultaneous Microwave-Ultrasound Assisted Extraction of Bioactive Compounds from Bark
(2020-08-22)
Larix decidua is one of the fastest growing conifers and one of the most important coniferous tree species in Europe with high importance at wood-based industry; however, the bark generated from the debarking process is ...
Separation and Purification of Hemicellulose by Ultrafiltration
(ACS, 2011-12-29)
[EN]During hydrolysis treatments, where the main objective is the solubilization of hemicelluloses, several undesirable reactions may occur. As a result, monomeric sugars and nonsaccharide compounds are obtained in the ...
Study of the influence of reutilization ionic liquid on lignin extraction
(Elsevier, 2015-04-09)
The development of green techniques for biomass processing and fractionation is crucial from the point of view of sustainability and environmental protection. Lignin is the second most abundant bio-renewable material on ...
Willow lignin oxidation and depolymerization under low cost ionic liquid
(ACS, 2016-05-10)
Willow biomass was subjected to different pretreatmentconditions with triethylammonium hydrogen sulfate as solvent, andthe produced lignin solutions were treated by oxidation either homo-geneously using H2O2as oxidant or ...
Study of a renewable capping agent addition in lignin base catalysed depolymerisation process
(Elsevier, 2020-07-13)
The aim of this work was to study the influence of a renewable capping agent (CA) in the production of monomeric compounds from the depolymerization of an organosolv lignin (Pinus radiata) by a base catalyzed depolymerization ...
Synthesis of advanced bio-based green materials from renewable biopolymers
(Elsevier, 2021-01-30)
Polymeric materials such as hydrogels have become necessary in our daily lives. Hydrogels are three-dimensionally cross-linked polymeric networks that can absorb large amounts of water. Thanks to their properties, hydrogels ...
Kraft and organosolv lignin-activated carbon composites for supercapacitor electrode materials
(Elsevier, 2024-03)
Lignin-activated carbon (AC) composites were employed as electrode active materials to develop more environmentally friendly Supercapacitor (SC) materials with enhanced properties. This way, the hydroquinone/quinone moieties ...
Dielectric characterisation of chitosan-based composite membranes containing fractionated kraft and organosolv lignin
(Elsevier, 2024-03)
Chitosan-based composite membranes with fractionated kraft and organosolv lignin were prepared by solvent casting. A small lignin fraction (1%) was added to the neat chitosan to obtain a good distribution. The influence ...