THE ECOLOGY AND PHYSIOLOGY OF SOIL FUNGI INVOLVED IN THE DEGRADATION OF LIGNIN AND RELATED AROMATIC COMPOUNDS A study has been made of the colonization by soil fungi of kaolin pellets in which was incorporated either a lignin preparation extracted from Phragmites o... D Jones,VC Farmer - 《Euro...
Animal hair composed of protein is a common biological fiber. Numerous types of hair have been used commercially for weaving, production of ropes, padding, and insulation. Figure 2. A portion of one of the many possible structures of lignin. Wool fibers are made of animal hair, principally...
Structural Changes in Lignin During Kraft Cooking. Part 5. Analysis of Dissolved Lignin by Oxidative Degradation Kraft lignins have been isolated from the black liquors obtained a) after normal kraft cooking of pine wood to different yield levels and b) after a flow-t... G?ran,Gellerstedt,&...
Lignin impact on fiber degradation. IV. Enzymatic saccharification and in vitro digestibility of alfalfa and grasses following selective solvent delignific... The response in composition, in vitro dry matter digestibility ( IVDDM ), and enzymatic saccharification, of alfalfa and various grasses to ...
The kappa number of chemical pulp is widely used as a measure of the degree of delignification in pulping,oxygen delignification and prebleaching. It has been shown that the kappa number reflects not only lignin content but also the amount of hexenuronic acid groups linked to xylan. It was fo...
As the ratio of Na_2SO_3 to NaOH dosage ranged from 0.4 to 2.4, low proportion of Na_2SO_3 allows effective delignification while no serious degradation of carbohydrate. Moreover, similar to kraft pulping, addition of AQ in the range of 0.05% to 0.25% is useful to remove lignin and ...
cationformation. D2004ElsevierB.V.Allrightsreserved. Keywords:Potential-stepchronoamperometry;Microdiskelectrode;Lignin;Electronmediator;Diffusioncoefficient 1.Introduction Aromatichydrocarbons,whichhavemethoxymoieties, aresecondarymetabolitesproducedbywhite-rotfungus Phanerochaetechrysosporiumduringligninbiodegradation [1]...
The char and alkali metals possessed a catalytic effect on the thermal degradation of biomass during pyrolysis [39], with ash of abundant alkaline elements produced [40]. The total liquid and organic yields (representation of VM) increase, while ash composition decrease. Figure 3. Correlation ...