• Thumbnail for Lignin
    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 (3,819 words) - 21:41, 14 July 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
  • 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
  • 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
  • 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
  • Thumbnail for Wood-decay fungus
    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 (6,534 words) - 13:58, 11 July 2024
  • Thumbnail for Kraft paper
    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...
    7 KB (904 words) - 07:06, 6 May 2024
  • 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 (262 words) - 05:25, 18 August 2022
  • Thumbnail for Pulp (paper)
    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) - 04:26, 14 June 2024
  • lignin(MWL), formaldehyde-protected lignin (FPL) and acetone-protected lignin adhesives that were prepared with lignins separated under either mild conditions...
    28 KB (3,245 words) - 02:01, 22 June 2024
  • Thumbnail for Paper
    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 (4,692 words) - 01:14, 18 May 2024
  • Thumbnail for Vanillin
    (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 (3,759 words) - 14:56, 7 July 2024
  • Thumbnail for Black liquor
    from the kraft process when digesting pulpwood into paper pulp removing lignin, hemicelluloses and other extractives from the wood to free the cellulose...
    12 KB (1,413 words) - 18:12, 26 July 2024
  • Thumbnail for Lignocellulosic biomass
    hemicellulose, and an aromatic-rich polymer called lignin. Any biomass rich in cellulose, hemicelluloses, and lignin are commonly referred to as lignocellulosic...
    17 KB (1,902 words) - 22:52, 14 December 2023
  • 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
  • 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 (1,761 words) - 20:27, 17 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
  • Thumbnail for Cross-link
    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
  • 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
  • Thumbnail for Kraft process
    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
  • Thumbnail for Coal
    ability to produce lignin, a complex polymer that made their cellulose stems much harder and more woody. The ability to produce lignin led to the evolution...
    122 KB (12,094 words) - 14:33, 29 July 2024
  • Thumbnail for Genetically modified tree
    environmental conditions, and herbicide tolerance, or the alteration of lignin levels in order to reduce pulping costs. Genetically modified forest trees...
    31 KB (3,214 words) - 23:28, 4 May 2024
  • Thumbnail for Monolignol
    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) - 04:52, 3 May 2024
  • Thumbnail for Wood
    cellulose 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 (8,942 words) - 13:26, 27 July 2024
  • Thumbnail for Petrified wood
    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 (3,168 words) - 04:15, 26 July 2024
  • Thumbnail for Hydroxylammonium chloride
    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
  • Thumbnail for Bark (botany)
    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) - 15:16, 10 July 2024
  • Thumbnail for Carboniferous
    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...
    110 KB (11,562 words) - 10:18, 18 June 2024
  • Thumbnail for Syringol
    wood smoke. Lignin, comprising a major fraction of biomass, is sometimes classified according to the syringyl component. Pyrolysis of lignin derived from...
    6 KB (459 words) - 23:19, 20 October 2023
  • normally made from pulpwood, but is not considered wood as most of the lignin is removed and separated from the cellulose fibers during processing, whereas...
    65 KB (7,660 words) - 00:09, 31 July 2024