Results 91 to 100 of about 23,645 (231)

Effect of particle size on the surface properties and morphology of ground flax [PDF]

open access: yes, 2013
Flax fibers were ground with a ball-mill and four fractions with different size ranges were collected by sieving. These were tested for water sorption, degree of polymerization (DP), copper number, hydroxyl number and analyzed by X-ray diffraction (XRD),
Bandi, Éva   +5 more
core   +1 more source

Analysis of products from the oxidation of technical lignins by oxygen and H3PMo12O40 in water and aqueous methanol by size-exclusion chromatography [PDF]

open access: yes, 2017
One kraft lignin and two lignosulfonates were oxidized in aqueous acidic solutions containing a polyoxometalate (POM). The degradations were carried out in H2O or MeOH/H2O mixtures in the presence of oxygen.
Nagel, Marina V.   +2 more
core  

Modification of Kraft Lignin with Dodecyl Glycidyl Ether

open access: yesChemistryOpen, 2019
Kraft lignin (KL) is extensively produced in industry but is mainly burned as fuel. To broaden its use, KL was grafted with dodecyl glycidyl ether to alter its thermal properties.
Norah S. Alwadani, Prof. Pedram Fatehi
doaj   +1 more source

Effect of Kraft Pulping Pretreatment on the Chemical Composition, Enzymatic Digestibility, and Sugar Release of Moso Bamboo Residues

open access: yesBioResources, 2014
In this work, kraft pulping was carried out on moso bamboo residues as a pretreatment and its impact on the chemical compositions and the digestibility of the sample was investigated.
Caoxing Huang   +6 more
doaj   +1 more source

Driven Assembly of Lignin into Microcapsules for Storage and Delivery of Hydrophobic Molecules [PDF]

open access: yes, 2014
Oil-filled microcapsules of kraft lignin were synthe- sized by first creating an oil in water emulsion followed by a high- intensity, ultrasound-assisted cross-linking of lignin at the water/oil interface. The rationale behind our approach is based on
Agnihotri N.   +59 more
core   +1 more source

Synthesis of lignin based composites of TiO2 for potential application as radical scavengers in sunscreen formulation

open access: yesBMC Chemistry, 2019
Titanium dioxide (TiO2) is added in sunscreens due to its ability to absorb ultraviolet (UV) light. However, upon irradiation of UV light, reactive oxygen species particularly hydroxyl radical which can damage human skin will be generated. In this study,
Mohamad Nasir Mohamad Ibrahim   +4 more
doaj   +1 more source

The Use of Demolition Wood in Papermaking [PDF]

open access: yes, 1996
The reason for this study came from three factors affecting the paper industry as well as society as a whole. These factors are decreasing landfill space, increasing tipping fees, and increasing demands for alternative fiber sources. In the United States,
Anderson, Todd W.
core   +1 more source

Second-generation bioethanol from industrial wood waste of South American species [PDF]

open access: yes, 2017
There is a global interest in replacing fossil fuels with renewable sources of energy. The present review evaluates the significance of South-American wood industrial wastes for bioethanol production. Four countries have been chosen for this review, i.e.,
Area, Maria Cristina   +2 more
core   +2 more sources

Optimization of Laccase Production, and Characterization of Lignin Degradation Products by Fusarium oxysporum JUMAD-053

open access: yesOrbital: The Electronic Journal of Chemistry, 2021
The objective of this work was to optimize the culture conditions for laccase production in the presence of Kraft lignin by Fusarium oxysporum JUMAD-053, and to evaluate the biodegradation products of lignin.
Igor S. Shiraishi   +11 more
doaj  

Sequencing around 5-hydroxyconiferyl alcohol-derived units in caffeic acid O-methyltransferase-deficient poplar lignins [PDF]

open access: yes, 2010
Caffeic acid O-methyltransferase (COMT) is a bifunctional enzyme that methylates the 5- and 3-hydroxyl positions on the aromatic ring of monolignol precursors, with a preference for 5-hydroxyconiferaldehyde, on the way to producing sinapyl alcohol ...
Adler   +35 more
core   +6 more sources

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