Results 71 to 80 of about 588 (182)

CHEMICAL CHARACTERIZATION OF PULP COMPONENTS IN UNBLEACHED SOFTWOOD KRAFT FIBERS RECYCLED WITH THE ASSISTANCE OF A LACCASE/HBT SYSTEM

BioResources, 2007
Oxidative treatments, without and with assistance of a Laccase-Mediator System (LMS), were characterized in relation to their effects on the chemical composition and strength properties of the fibrous fraction of an unbleached recycled softwood kraft ...
Luiz Pereira Ramos, Miguel A. Zanuttini, Paulina Mocchiutti, Thiago Alessandre da Silva   +3 more
doaj  

Hexenuronic acid removal from unbleached kraft eucalyptus pulp by peroxymonosulfuric acid [PDF]

, 2012
The use of peroxymonosulphuric (Ps) acid to remove hexenuronic acid (HexA) present in unbleached eucalyptus kraft pulps was evaluated here. HexA is formed during pulping and is held responsible for reagent consumption during bleaching.
Melo, R., Zaror, C., Petit-Breuilh, X.
core  

Industrial Hemp as a Potential Nonwood Source of Fibres for European Industrial-Scale Papermaking-A Review. [PDF]

Materials (Basel), 2023
Danielewicz D.
europepmc   +1 more source

Production of Cellulose Pulp and Lignin from High-Density Apple Wood Waste by Preimpregnation-Assisted Soda Cooking. [PDF]

Polymers (Basel), 2023
Gao S, Tian G, Fu Y, Wang Z.
europepmc   +1 more source

The potential of ¹³C CP/MAS NMR in the study of kraft pulping kinetics

, 1986
Solid state 13C CP/MAS nuclear magnetic resonance spectra were obtained for unbleached kraft pulps prepared from white spruce with yields ranging from 47.6 to 96.1%.
Willis, J. M., Herring, F. G., Jagannathan, N. R.   +2 more
core   +1 more source

ESTUDO DA BRANQUEABILIDADE DA POLPA KRAFT DE EUCALIPTO

Ciência Florestal, 2015
The aim of this study was to evaluate how the pulp bleachability ability is correlated with the wood chemical characteristics, the cooking conditions, the kappa number of the brown pulp and the bleaching sequences, based on the pulp bleached brightness ...
Danila Morais de Carvalho, Marcelo Rodrigues da Silva, Jorge Luiz Colodette   +2 more
doaj  

Isolation of Mixed Compositions of Cellulose Nanocrystals, Microcrystalline Cellulose, and Lignin Nanoparticles from Wood Pulps. [PDF]

ACS Omega, 2023
Abitbol T, Kubat M, Brännvall E, Kotov N, Johnson CM, Nizamov R, Nyberg M, Miettunen K, Nordgren N, Stevanic JS, Guerreiro MP.   +10 more
europepmc   +1 more source

The use of cellulases and hemicellulases to study lignin-cellulose as well as lignin-hemicellulose bonds in kraft pulps

, 2001
The combination of carbohydrate-degrading enzymes and size-exclusion chromatography (SEC) has been used to analyze the existence of covalent bonds between lignin and cellulose and/or hemicelluloses in pulps.
Pettersson, B., Karlsson, Olov,, Westermark, Ulla   +2 more
core  

Application of artificial neural networks for predicting tensile index and brightness in bleaching pulp

Maderas: Ciencia y Tecnología, 2015
The purpose of this study was to develop artificial neural network (ANN) models for predicting the effects of wood species, sodium perborate tetrahydrate (SPBTH) ratio, time, and beating degree on tensile index and brightness in bleaching pulp ...
Onur Tolga Okan, Ilhan Deniz, Sebahattin Tiryaki   +2 more
doaj  

Survivability of Salmonella Typhimurium (ATCC 14208) and Listeria innocua (ATCC 51742) on lignocellulosic materials for paper packaging. [PDF]

Heliyon, 2023
Zwilling JD, Whitham J, Zambrano F, Pifano A, Grunden A, Jameel H, Venditti R, Gonzalez R.   +7 more
europepmc   +1 more source