Results 21 to 30 of about 25,938 (258)

Energy Analysis for Conversion of a Kraft Pulp Mill into a Dissolving Pulp Mill

open access: yesChemical Engineering Transactions, 2012
Currently, kraft pulp mills in Europe and North America are facing several challenges and have been forced to think along new products and new business areas.
V. Lundberg   +3 more
doaj   +1 more source

Biological Potential of the Main Component, Thymoquinone, of Nigella sativa in Pulp Therapy—In Vitro Study

open access: yesLife, 2022
This work is designed to assess the antimicrobial efficacy, chelating efficacy, and dissolving capability of the bioactive agent of the Nigella sativa plant (thymoquinone). Four freeze-dried microorganisms were studied.
Rana A. Alamoudi   +2 more
doaj   +1 more source

Xoconostle fruit (Opuntia matudae Scheinvar cv. Rosa) by-products as potential functional ingredients [PDF]

open access: yes, 2015
There is a lack of information on the potential use of xoconostle cultivars as sources of antioxidants for food, pharmaceutical and colorant industries.
Barros, Lillian   +4 more
core   +1 more source

Alternative chemo-enzymatic treatment for homogeneous and heterogeneous acetylation of wood fibers [PDF]

open access: yes, 2018
A new chemo-enzymatic treatment is proposed to produce cellulosic fibers suitable for heterogeneous- or homogeneous-phase acetylation. The procedure included enzymatic (laccase–violuric acid) lignin removal from the precursor fibers (unbleached sulfite ...
Ago, Mariko   +4 more
core   +2 more sources

Simple one pot preparation of chemical hydrogels from cellulose dissolved in cold LiOH/urea [PDF]

open access: yes, 2020
In this work, non-derivatized cellulose pulp was dissolved in a cold alkali solution (LiOH/urea) and chemically cross-linked with methylenebisacrylamide (MBA) to form a robust hydrogel with superior water absorption properties.
Lindman, Björn   +3 more
core   +1 more source

Improved Cellulose Yield in the Production of Dissolving Pulp from Bamboo Using Acetic Acid in Prehydrolysis

open access: yesBioResources, 2014
Despite increasing demand for dissolving pulps from raw material, production costs remain quite high compared to regular paper pulp. Research literature to date has focused on improving performance and quality but has not simultaneously explored how to ...
Guang Li   +3 more
doaj   +1 more source

A novel enzymatic approach to nanocrystalline cellulose preparation [PDF]

open access: yes, 2018
In this work, conditions for an enzymatic pretreatment prior to NCC isolation from cotton linter were assessed. Different cellulase doses and reaction times were studied within an experimental design and NCC were obtained. At optimal enzymatic conditions
Beltramino, Facundo   +3 more
core   +2 more sources

Morphological and Chemical Characterization of Green Bamboo (Dendrocalamopsis oldhami (Munro) Keng f.) for Dissolving Pulp Production

open access: yesBioResources, 2014
With the sustained growth of dissolving pulp demand all over the world, the search for alternative bamboo materials has come into focus in China due to the shortage of wood and the abundance of bamboo resources.
Shilin Cao   +5 more
doaj   +1 more source

Rapid estimation of gamma number of viscose by UV Spectrophotometry [PDF]

open access: yes, 2014
Viscose process is the most important method for industrial cellulose dissolution. The degree of substitution (DS) is an important parameter in cellulose derivatives, and it is usually expressed as a gamma number (γ No.).
Alberini, Ivana Cecilia   +3 more
core  

New technologies to improve root canal disinfection [PDF]

open access: yes, 2016
Effective irrigant delivery and agitation are prerequisites to promote root canal disinfection and debris removal and improve successful endodontic treatment. This paper presents an overview of the currently available technologies to improve the cleaning
Cortese, Teresa   +6 more
core   +1 more source

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