Results 11 to 20 of about 5,696 (224)

Caracterização das O-acetil-(4-O-metilglicurono)xilanas isoladas da madeira de Eucalyptus urograndis Characterization of O-acetil-(4-O-methylglucurono)xylans from Eucalyptus urograndis [PDF]

open access: yesQuímica Nova, 2008
The O-acetyl-4-O-methyl-(glucurono)xylans were isolated from E. urograndis by extraction with dimethyl sulfoxide, analysed for monosaccharide composition and structurally characterized by NMR spectroscopy. These xylans contained one 4-O-methyl-glucuronic
Andréia da Silva Magaton   +2 more
doaj   +2 more sources

Hydrolysis of xylans by enzyme systems from solid cultures of Trichoderma harzianum strains [PDF]

open access: yesBrazilian Journal of Medical and Biological Research, 1999
Xylanase activity was isolated from crude extracts of Trichoderma harzianum strains C and 4 grown at 28oC in a solid medium containing wheat bran as the carbon source.
F.Q.P. Silveira   +6 more
doaj   +3 more sources

Enzymatic deconstruction of wheat bran xylans by a thermophylic bacterium, Thermobacillus xylanilyticus, to produce valuable molecules

open access: yes, 2015
Enzymatic deconstruction of wheat bran xylans by a thermophylic bacterium, [i]Thermobacillus xylanilyticus[/i], to produce valuable molecules. 3.
Dupoiron, Stéphanie   +5 more
core   +13 more sources

enzymatically digest xylans from terrestrial plants [PDF]

open access: yes, 2023
Marine Bacteroidetes that degrade polysaccharides contribute to carbon cycling in the ocean. Organic matter, including glycans from terrestrial plants, might enter the oceans through rivers.
Daniel Bartosik   +43 more
core   +1 more source

The distribution of Lignin and Xylan in the Inner and Surface Layers of the Fiber from Eucalyptus Kraft Pulp and its Effects on Oxygen Delignification [PDF]

open access: yesMaterials Research, 2017
The chemical structure and composition of lignin and hemicellulose, as well as the distribution between inner and outer layers of fiber, can adversely affect bleaching operations or fiber-fiber bond on pulp and, consequently the papermaking process ...
Giovani Boaventura Bacarin   +3 more
doaj   +1 more source

Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan

open access: yesJournal of Bioresources and Bioproducts, 2022
Dimethylsulfoxide (DMSO) extraction is commonly used to study the chemical structures of original xylan in the plant cell wall, since the DMSO can preserve the original structure of the xylan as much as possible during the extracting process. In addition,
Mingquan Zhang   +3 more
doaj   +1 more source

An Update on Xylan Synthesis [PDF]

open access: yesMolecular Plant, 2012
Plant cell walls are complex structural frameworks that affect cell shape and differentiation, and that protect the plant cell against environmental conditions (Scheller and Ulvskov, 2010). One of the major components of the wall is the hemicellulosic polysaccharide xylan, which is composed of a linear β-(1,4)-linked D-xylosyl (Xyl) backbone with ...
Doering, Anett   +2 more
openaire   +2 more sources

The Xylan of Rhodymenia palmata [PDF]

open access: yesNature, 1950
Barry and Dillon1 reported the isolation from the red seaweed Rhodymenia palmata of a polysaccharide which gave D-xylose on hydrolysis. Our special interest in xylans2 has led us to investigate this substance more fully as part of the research programme of the Scottish Seaweed Research Association.
E G V, PERCIVAL   +5 more
openaire   +3 more sources

INFLUÊNCIA DO CONTEÚDO DE XILANAS NA BRANQUEABILIDADE, PROPRIEDADES HIGROSCÓPICAS, FISICO-MECÂNICAS E ÓPTICA DE POLPAS BRANQUEADAS DE EUCALIPTO

open access: yesQuímica Nova, 2015
Bleached eucalypt kraft pulps are widely used in print and writing (P&W) and tissue paper manufacture. Among the quality requirements of pulp for these papers, xylan content has been controversial.
Valéria J. Gomes   +4 more
doaj   +1 more source

Alterations of the degree of xylan acetylation inArabidopsisxylan mutants [PDF]

open access: yesPlant Signaling & Behavior, 2014
Xylan is the second most abundant polysaccharide in secondary walls of dicot plants and one of its structural features is the high degree of acetylation of xylosyl residues. In Arabidopsis, about 60% of xylosyl residues in xylan are acetylated and the biochemical mechanisms controlling xylan acetylation are largely unknown.
Chanhui, Lee   +3 more
openaire   +2 more sources

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