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Solubility of Softwood Hemicelluloses
Biomacromolecules, 2018It is demonstrated that the molecular solubility of softwood hemicelluloses is significantly influenced by pretreatment of the fibers, extraction, and downstream processing. To quantify these effects, four hemicellulose samples were extracted from different thermomechanical pulps of Norway spruce.
Saina Kishani +4 more
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Bioconversion of Hemicellulosics
1985Hemicellulose carbohydrates comprise a significant proportion of available biomass resources such as agricultural residues and wood wastes. These sugars, of which D-xylose is the most abundant, can be converted to valuable fuels and chemical feedstocks by bacteria, yeasts and mycelial fungi.
R J, Magee, N, Kosaric
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Canadian Journal of Chemistry, 1951
Various hemicellulose fractions were extracted from wheat straw holocellulose (extractive and pectin free) by successive treatments with cold and hot water, 0.5%, 1.0%, and 2.0% potassium hydroxide and were recovered by precipitation with alcohol. Approximately 25% of the holocellulose material was removed, one half being in the hot water soluble ...
Adams, G.A., Castagne, A.E.
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Various hemicellulose fractions were extracted from wheat straw holocellulose (extractive and pectin free) by successive treatments with cold and hot water, 0.5%, 1.0%, and 2.0% potassium hydroxide and were recovered by precipitation with alcohol. Approximately 25% of the holocellulose material was removed, one half being in the hot water soluble ...
Adams, G.A., Castagne, A.E.
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Conversion of hemicellulose carbohydrates
1981Hemicellulose can be converted to a variety of useful products. There are two approaches to hemicellulose bioconversion; hemicellulose can be directly converted, or the hemicellulose-derived carbohydrates can be used as the substrate. The major problem in the bioconversion of hemicellulose carbohydrates is that suitable organisms which convert pentoses
Cheng-Shung Gong +3 more
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Structural Chemistry of the Hemicelluloses
1959Publisher Summary This chapter discusses the structural chemistry of the hemicelluloses. The term “hemicellulose” is applied to those plant cell-wall polysaccharides, which occur in close association with cellulose, especially in lignified tissues, the term often being restricted to substances extracted with alkaline reagents but not with water.
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Biodegradation of Hemicelluloses
1990Schulze (1891) gave the name hemicelluloses to those polysaccharides which could be extracted from plants by aqueous alkali. The name seemed appropriate since these polysaccharides were thought to be intermediates in cellulose biosynthesis and were found in close association with cellulose in the cell wall.
Karl-Erik L. Eriksson +2 more
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Bioconversion of Hemicelluloses
2018Hemicellulose comprises about 25–30% of the lignocellulosic biomass and is the second most abundant polysaccharide after cellulose. These are heterogeneous polymer of pentoses hexoses and sugar acids. Xylans is the major component of hemicellulose and are heteropolysaccharides with homopolymeric backbone chains of 1,4 linked β-d-xylopyranose units.
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