Results 51 to 60 of about 292,470 (358)

The arabidopsis RCC1 family protein TCF1 regulates freezing tolerance and cold acclimation through modulating lignin biosynthesis [PDF]

open access: yes, 2015
Cell water permeability and cell wall properties are critical to survival of plant cells during freezing, however the underlying molecular mechanisms remain elusive.
Cloix, Catherine   +9 more
core   +4 more sources

Early maturation processes in coal. Part 1: Pyrolysis mass balances and structural evolution of coalified wood from the Morwell Brown Coal seam [PDF]

open access: yesOrganic Geochemistry 40 (2009) 500-509, 2009
In this work, we develop a theoretical approach to evaluate maturation process of kerogen-like material, involving molecular dynamic reactive modeling with a reactive force field to simulate the thermal stress. The Morwell coal has been selected to study the thermal evolution of terrestrial organic matter.
arxiv   +1 more source

Obtaining Nanocarbon from Local Raw Materials and Studying Its Textural and Sorption Properties [PDF]

open access: yes, 2022
In this article studied the influence of various factors on the synthesis of nano carbons from walnut shells, apricot kernels, methane, natural gas and propane-butane fractions, and also checked the textural and sorption characteristics of the obtained nanocarbon. The catalytic activity of a catalyst containing (CuO)x*(CoO)y*(NiO)z*(Fe2O3)k*(MoO3)m/HSZ
arxiv   +1 more source

Lignin engineering in forest trees [PDF]

open access: yes, 2019
Wood is a renewable resource that is mainly composed of lignin and cell wall polysaccharides. The polysaccharide fraction is valuable as it can be converted into pulp and paper, or into fermentable sugars.
Alvarenga Chanoca, Alexandra   +2 more
core   +1 more source

The role of atomic orbitals of doped earth-abundant metals on designed copper catalytic surfaces [PDF]

open access: yesJournal of Physical Chemistry B 2019, 2017
It is a general challenge to design highly active or selective earth-abundant metals for catalytic hydrogenation. Here, we demonstrated an effective computational approach based on inverse molecular design theory to deterministically search for optimal binding sites on Cu (100) surface through the doping of Fe and/or Zn, and a stable Zn-doped Cu (100 ...
arxiv   +1 more source

Smoldering combustion in cellulose and hemicellulose mixtures: Examining the roles of density, fuel composition, oxygen concentration, and moisture content [PDF]

open access: yes, 2022
Smoldering combustion plays a key role in wildfires in forests, grasslands, and peatlands due to its common occurrence in porous fuels like peat and duff. As a consequence, understanding smoldering behavior in these fuels is crucial. Such fuels are generally composed of cellulose, hemicellulose, and lignin.
arxiv   +1 more source

Lignin as an Active Biomaterial: A Review

open access: yesJurnal Sylva Lestari, 2021
Lignin is the second most naturally abundant biopolymer in the cell wall of lignocellulosic compound (15-35%) after cellulose.Lignin can be generated in massive amounts as by-products in biorefineries and pulp and paper industries through differing ...
Nissa Nurfajrin Solihat   +7 more
doaj   +1 more source

Investigation of the chemocatalytic and biocatalytic valorization of a range of different lignin preparations: The importance of β-O-4 content [PDF]

open access: yes, 2016
A set of seven different lignin preparations was generated from a range of organosolv (acidic, alkaline, ammonia-treated, and dioxane-based), ionic liquid, autohydrolysis, and Kraft pretreatments of lignocelluloses.
Bouxin, Florent   +10 more
core   +4 more sources

Lignin, the Lignification Process, and Advanced, Lignin-Based Materials

open access: yesInternational Journal of Molecular Sciences, 2023
At a time when environmental considerations are increasingly pushing for the application of circular economy concepts in materials science, lignin stands out as an under-used but promising and environmentally benign building block. This review focuses (A) on understanding what we mean with lignin, i.e., where it can be found and how it is produced in ...
Maria Balk   +3 more
openaire   +2 more sources

Enzymatic Hydrolysis of Alkaline Pretreated Coconut Coir [PDF]

open access: yes, 2010
The purpose of this research is to study the effect of concentration and temperature on the cellulose and lignin content, and the reducing sugars produced in the enzymatic hydrolysis of coconut coir. In this research, the coconut coir is pretreated using
Fatmawati, Akbarningrum   +2 more
core   +5 more sources

Home - About - Disclaimer - Privacy