Results 341 to 350 of about 292,470 (358)
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Holzforschung, 1990
La digestion de la lignine ou de ses derives avec du soufre ou ses derives donne un produit que l'on agglomere avec du graphite pour obtenir un materiau conducteur. On examine sa structure par MEB, on etudie sa conductivite electrique en fonction de la temperature et on simule sur ordinateur les phenomenes de ...
Kuusela, T.A. +5 more
openaire +3 more sources
La digestion de la lignine ou de ses derives avec du soufre ou ses derives donne un produit que l'on agglomere avec du graphite pour obtenir un materiau conducteur. On examine sa structure par MEB, on etudie sa conductivite electrique en fonction de la temperature et on simule sur ordinateur les phenomenes de ...
Kuusela, T.A. +5 more
openaire +3 more sources
Interpretation of Lignin. I. The Synthesis of Gymnosperm Lignin [PDF]
Journal of the American Chemical Society, 1947 openaire +4 more sources
Lignin hydrogenolysis: Tuning the reaction by lignin chemistry
International Journal of Biological MacromoleculesReplacing fossil resource with biomass is one of the promising approaches to reduce our carbon footprint. Lignin is one of the three major components of lignocellulosic biomass, accounting for 10-35 wt% of dried weight of the biomass. Hydrogenolytic depolymerization of lignin is attracting increasing attention because of its capacity of utilizing ...
Mingjie, Chen +6 more
openaire +2 more sources
Lignin Recovery and Lignin-Based Products
2012An overview is given of the recovery and use of wood lignin. Most of the lignin produced today is lignosulfonate from sulfite pulping processes. Lignin from the more common kraft pulping process is also becoming available due to new technology. Another industrial source is as a byproduct from wood-based ethanol production.
Peter Axegard +3 more
openaire +2 more sources
Lignins - Determination of lignin content in kraft lignin, soda lignin, and hydrolysis lignin
2022openaire +2 more sources
2018
One of the most daunting challenges when studying lignin relates to analytical chemistry approaches applied to the heterogeneous polymer or epolymerization products. Understanding the structure of lignin in the cell wall alone is a target that remains incredibly challenging.
Giannì, Paola +2 more
openaire +3 more sources
One of the most daunting challenges when studying lignin relates to analytical chemistry approaches applied to the heterogeneous polymer or epolymerization products. Understanding the structure of lignin in the cell wall alone is a target that remains incredibly challenging.
Giannì, Paola +2 more
openaire +3 more sources
Actinomycetes and Lignin Degradation
2005Publisher Summary The chapter discusses the role of actinomycetes in lignocelluloses breakdown, and the details of the scale and method by which such breakdown takes place are limited. However, there is a wide range of examples where streptomyces and other actinomycetes have been identified as degrading lignin or lignocelluloses. The enzymes involved
openaire +4 more sources
1981
The origin of lignins in plant tissues is closely related to plant evolution. Land plants, which are believed to have been derived from the Psilophytales during the Silurian to Devonian eras, are always subjected to the mechanical stresses of gravity, winds, and rains, and they have acquired strong supporting organs, such as vascular bundles composed ...
openaire +3 more sources
The origin of lignins in plant tissues is closely related to plant evolution. Land plants, which are believed to have been derived from the Psilophytales during the Silurian to Devonian eras, are always subjected to the mechanical stresses of gravity, winds, and rains, and they have acquired strong supporting organs, such as vascular bundles composed ...
openaire +3 more sources
Soluble Native Lignin, Milled Wood Lignin, Synthetic Lignin, and the Structure of Lignin
Holzforschung, 1962openaire +2 more sources
Lignin and Lignin-Carbohydrate Complexes
Industrial & Engineering Chemistry, 1957openaire +2 more sources