Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. Lignins are particularly important...
34 KB (3,824 words) - 01:00, 18 November 2024
The term "lignin characterization" (or "lignin analysis") refers to a group of activities within lignin research aiming at describing the characteristics...
9 KB (1,177 words) - 16:11, 21 October 2023
Lignosulfonates (redirect from Lignin sulfonate)
which connect many of the constituents of lignin. Sulfonated lignin (SL) refers to other forms of lignin by-product, such as those derived from the much...
10 KB (1,205 words) - 10:33, 8 June 2024
Lignin-modifying enzymes (LMEs) are various types of enzymes produced by fungi and bacteria that catalyze the breakdown of lignin, a biopolymer commonly...
9 KB (1,159 words) - 02:17, 5 April 2022
both digest a tree's cellulose and hemicellulose but not its lignin; white rot digests lignin as well. The residual products of decomposition from fungal...
54 KB (6,550 words) - 03:01, 18 November 2024
In enzymology, a lignin peroxidase (EC 1.11.1.14) is an enzyme that catalyzes the chemical reaction 1,2-bis(3,4-dimethoxyphenyl)propane-1,3-diol + H2O2...
6 KB (663 words) - 14:45, 26 August 2023
The Kappa number is an indication of the residual lignin content or bleachability of wood pulp by a standardized analysis method. The Kappa number is determined...
2 KB (263 words) - 20:37, 2 August 2024
the unwanted lignin, but not the cellulose fibres. In the biopulping process, the fungal enzyme lignin peroxidase selectively digests lignin to leave remaining...
38 KB (4,254 words) - 22:23, 14 August 2024
(4-allyl-2-methoxyphenol). Today, artificial vanillin is made either from guaiacol or lignin. Lignin-based artificial vanilla flavoring is alleged to have a richer flavor...
37 KB (3,760 words) - 01:45, 19 October 2024
Wood glue (section Lignin–phenol–formaldehyde)
lignin(MWL), formaldehyde-protected lignin (FPL) and acetone-protected lignin adhesives that were prepared with lignins separated under either mild conditions...
29 KB (3,311 words) - 19:17, 18 October 2024
a chemical pulping process separates lignin from cellulose fibre. A cooking liquor is used to dissolve the lignin, which is then washed from the cellulose;...
43 KB (4,679 words) - 01:25, 10 November 2024
leave most of the lignin with the fibers, whereas kraft pulping removes most of the lignin present originally in the wood. Low lignin is important to the...
8 KB (936 words) - 18:58, 15 November 2024
Organosolv (section Lignin recovery)
organosolv is a pulping technique that uses an organic solvent to solubilise lignin and hemicellulose. It has been considered in the context of both pulp and...
13 KB (1,769 words) - 02:55, 23 August 2024
hemicellulose, and an aromatic-rich polymer called lignin. Any biomass rich in cellulose, hemicelluloses, and lignin are commonly referred to as lignocellulosic...
17 KB (1,906 words) - 07:50, 24 September 2024
cellulosic fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary...
94 KB (8,949 words) - 14:50, 13 November 2024
mineralization. There needs to be a balance between the decay of cellulose and lignin and mineral templating for cellular detail to be preserved with fidelity...
30 KB (3,167 words) - 03:01, 22 October 2024
134. Biosynthesis of lignin (including the delineation of pathways), structure of lignin, chemistry of lignin, reactions of lignin. Analysis of the impacts...
8 KB (772 words) - 20:51, 22 July 2024
polymers of hardwoods are cellulose, hemicellulose, and lignin. The constituents of hardwood lignin differs from those included in softwood. Sinapyl alcohol...
10 KB (959 words) - 12:14, 11 September 2024
The compound is present in wood smoke, resulting from the pyrolysis of lignin. The compound contributes to the flavor of many substances such as whiskey...
12 KB (1,130 words) - 14:11, 29 March 2024
nitrogen content and are often dry. Their main constituents, cellulose and lignin, are two recalcitrant molecules resistant to degradation. Because of this...
6 KB (643 words) - 22:01, 18 May 2024
lignols, are the source materials for biosynthesis of both lignans and lignin and consist mainly of paracoumaryl alcohol (H), coniferyl alcohol (G) and...
5 KB (506 words) - 12:26, 2 August 2024
of various biopolymers, tannins, lignin, suberin and polysaccharides. Up to 40% of the bark tissue is made of lignin, which forms an important part of...
29 KB (3,454 words) - 04:14, 2 November 2024
sulfide (Na2S), known as white liquor, that breaks the bonds that link lignin, hemicellulose, and cellulose. The technology entails several steps, both...
25 KB (3,075 words) - 07:11, 6 May 2024
which lignin and hemicellulose are separated from cellulose fiber for the production of pulp. The white liquor breaks the bonds between lignin and cellulose...
2 KB (211 words) - 08:57, 10 September 2021
carbon-carbon double bond. During the acetyl bromide method of extracting lignin from lignocellulosic biomass, hydroxylammonium chloride can be used to remove...
5 KB (330 words) - 21:41, 16 February 2024
Black liquor (section Extraction of lignin)
from the kraft process when digesting pulpwood into paper pulp removing lignin, hemicelluloses and other extractives from the wood to free the cellulose...
14 KB (1,646 words) - 01:26, 11 November 2024
Cross-link (section Lignin)
measure the volume change. The crosslink density can then be calculated. Lignin is a highly crosslinked polymer that comprises the main structural material...
18 KB (1,797 words) - 09:34, 27 July 2024
products are speciality cellulose, lignin products (lignosulphonates), bio ethanol, yeast and yeast extracts and lignin-based vanillin. The company also...
9 KB (907 words) - 02:39, 27 August 2024
with the wood fibre lignin and the subsequent evolution of lignin-degrading fungi gave a period of time where vast amounts of lignin-based organic material...
115 KB (12,087 words) - 12:23, 15 November 2024
Genetically modified tree (section Lignin alteration)
environmental conditions, and herbicide tolerance, or the alteration of lignin levels in order to reduce pulping costs. Genetically modified forest trees...
31 KB (3,207 words) - 08:54, 30 September 2024