Results 21 to 30 of about 1,901 (201)
Energies, 2020 Second-generation bioethanol production’s main bottleneck is the need for a costly and technically difficult pretreatment due to the recalcitrance of lignocellulosic biomass (LCB).
Rita H. R. Branco +3 more
doaj +1 more source
Microfibrillated lignocellulose (MFLC) and nanopaper films from unbleached kraft softwood pulp [PDF]
Cellulose, 2019 AbstractMicrofibrillated cellulose (MFC) is an important industrial nanocellulose product and material component. New MFC grades can widen the materials property range and improve product tailoring. Microfibrillated lignocellulose (MFLC) is investigated, with the hypothesis that there is an optimum in lignin content of unbleached wood pulp fibre with ...
Erfan Oliaei +5 more
openaire +1 more source
Revista Árvore, 2005 The use of 12-year-old Pinus tecunumanii (Eguiluz e Perry) grown in Colombia was evaluated for bleached kraft pulp production. Kraft pulps of kappa number 30 ± 1 were produced, and oxygen delignified and bleached to 90% ISO with ECF processes.
Leonel F. Torres +2 more
doaj +1 more source
Characterization of hairs and pappi from Cynara cardunculus capitula and their suitability for paper production [PDF]
, 2009 The capitula of Cynara cardunculus contain hairs and pappi representing 7% of the total plant biomass. These low density biomass components could be mechanically separated without apparent losses using a whole-plant processing prototype.
Curt, Maria +4 more
core +1 more source
Investigation on potential long fibre Pinus eldarica Kraft Pulp [PDF]
تحقیقات علوم چوب و کاغذ ایران, 1998 Kraft pulping of Pinus eldarica wood was carried out at 18% active alkali, 25% sulphidity and pulping temperature & Time of 165 C and 90 minutes pulp was compared with imported unbleached long fibre pulp with the kappa number of 34.
Fardad Golbabaei +4 more
doaj +1 more source
Química Nova, 2015 Bleached eucalypt kraft pulps are widely used in print and writing (P&W) and tissue paper manufacture. Among the quality requirements of pulp for these papers, xylan content has been controversial.
Valéria J. Gomes +4 more
doaj +1 more source
Stellera chamaejasme Roots as Raw Material for Pulp Production
BioResources, 2014 Cellulosic pulps were prepared from Stellera chamaejasme roots using soda, soda-anthraquinone (soda-AQ), and kraft pulping processes. S. chamaejasme is composed of 73.5% holocellulose, 39.7% α-cellulose, and 17.6% lignin, similar to wheat straw and other
Haichao Li +3 more
doaj +1 more source
Studying the effects of laccase treatment in a softwood dissolving pulp: cellulose reactivity and crystallinity [PDF]
, 2014 An enzymatic biobleaching sequence (LVAQPO) using a laccase from Trametes villosa in combination with violuric acid (VA) and then followed by a pressurized hydrogen peroxide treatment (PO) was developed and found to give high bleaching properties and ...
Ariza, J. +5 more
core +2 more sources
The Effect of Ultraviolet Light on the Color of Unbleached Pulps: Literature Survey [PDF]
, 1959 A literature survey was prepared which covered the published information on the effects of ultraviolet light on the color of unbleached pulps. Experiments were conducted with eight types of unbleached pulp which were converted into optical test pads ...
Brew, David L.
core +1 more source
Enhancing Antimicrobial Activity in Unbleached Kraft Pulp using Laccase and Phenolic Compounds
BioResources, 2012 Unbleached kraft pulp fibers were reacted with laccase in the presence of different phenolic compounds (isoeugenol, butyl p-hydroxybenzoate, p-coumaric acid, and ferulic acid) in order to confer them with new properties. After the enzymatic stage, antimicrobial tests demonstrated that the handsheets formed from the laccase/phenolic-treated pulp showed ...
Jicheng Pei +4 more
openaire +3 more sources