Zobrazeno 1 - 10
of 18
pro vyhledávání: '"M. Graça V.S. Carvalho"'
Publikováno v:
Journal of the Science of Food and Agriculture. 97:2641-2646
Rapeseed meal is a good source of high-quality vegetal protein but contains antinutritional compounds that limit its use for human and animal feed. The aim of this study was to develop a methodology to enhance alkaline protein extraction of rapeseed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9df09d0569a1cc660781bfee87e5005
https://doi.org/10.1002/jsfa.8087
https://doi.org/10.1002/jsfa.8087
Autor:
António Portugal, M. Graça V.S. Carvalho, Cátia V. T. Mendes, M. Beatriz F. Banaco, Rui Moreira
Publikováno v:
Industrial Crops and Products. 152:112499
Pinus pinaster wood (PPW) was fractionated by two different routes: (1) a two-steps system by soda ethanol organosolv (SEOS) followed by lignin precipitation (LP) and (2) a three-steps procedure encompassing autohydrolysis (AH) followed by SEOS and L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aa3c2961c22ff3cf1f10f0f245fb894
https://doi.org/10.1016/j.indcrop.2020.112499
https://doi.org/10.1016/j.indcrop.2020.112499
Publikováno v:
Journal of Chemical Technology & Biotechnology. 91:547-554
BACKGROUND Brightness stability of bleached chemical pulps is often associated with the final bleaching stages that should provide the removal of chromogenic species responsible for brightness reversion without compromising the papermaking potential.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7aa5b437d482e8473699e19b3ebc02d0
https://doi.org/10.1002/jctb.4624
https://doi.org/10.1002/jctb.4624
Autor:
Diana F.N. Reis, Cátia V. T. Mendes, M. Graça V.S. Carvalho, Jorge Rocha, Crispin Humberto Garcia Cruz
Publikováno v:
Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2018-11-26T17:06:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-11-01 project Energy and Mobility for Sustainable Regions - EMSURE Primary sludge, from different pulp and paper mills, was used as feedstock in si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff62792f4787e8c60dda70466f2b4ba8
Publikováno v:
July 2012. 11:37-46
This study puts particular emphasis on the role of copper ions in the performance of hydrogen peroxide bleaching (P-stage). Owing to their variable levels across the bleaching line due to washing filtrates, bleaching reagents, and equipment corrosion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a40aef28f16552f42e188450e526b57
https://doi.org/10.32964/tj11.7.37
https://doi.org/10.32964/tj11.7.37
Prebleaching of eucalypt kraft pulp with OP stages: Effect of an acid pretreatment or chelation step
Autor:
Licínio M. Gando-Ferreira, Ana P. V. Egas, M. Graça V.S. Carvalho, Tatiana M. Póvoas, Dina A.G. Angélico, Pedro E. G. Loureiro
Publikováno v:
June 2012. 11:31-38
We conducted a comparative evaluation of different treatments for the bleaching of eucalypt kraft pulps beginning with OP stages. The treatments tested were (1) an acid chelation stage with DTPA (OQP sequence); (2) a hot acid stage (AOP sequence); an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6de0018ab1cc0699bf1eea3b5bd3d188
https://doi.org/10.32964/tj11.6.31
https://doi.org/10.32964/tj11.6.31
Autor:
Hélio José Marques Carreira, Dmitry V. Evtuguin, M. Graça V.S. Carvalho, Pedro E. G. Loureiro
Publikováno v:
March 2012. 11:59-67
The focus of this study is the chemistry of reductive bleaching of kraft pulps with sodium dithionite. A set of model compounds mimicking quinone structures, residual lignin structures with conjugated carbonyl/carboxyl groups and muconic acid, among
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87e08949426a72a2037e862a84eae5f0
https://doi.org/10.32964/tj11.3.59
https://doi.org/10.32964/tj11.3.59
Autor:
Pedro E. G. Loureiro, António J. S. Fernandes, M. Rosário M. Domingues, Dmitry V. Evtuguin, M. Graça V.S. Carvalho
Publikováno v:
Carbohydrate Polymers. 88:726-733
The reasons for the improved brightness stability of pulp bleached in the final stage with hydrogen peroxide than with chlorine dioxide have been studied. UV–vis Diffuse Reflectance and UV Resonance Raman micro-spectroscopy @ 325 nm were employed t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::471616901c3112670ae1e59ebe1cea11
https://doi.org/10.1016/j.carbpol.2012.01.024
https://doi.org/10.1016/j.carbpol.2012.01.024
Publikováno v:
Journal of Food Engineering. 109:337-346
Oilseed plants used for the production of vegetable oil are also natural sources of vegetable proteins, which have great nutritional value. This manuscript presents a literature review of the production and the application of vegetables proteins obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2732fe553768f0429c91c6448efa8169
https://doi.org/10.1016/j.jfoodeng.2011.10.027
https://doi.org/10.1016/j.jfoodeng.2011.10.027
Publikováno v:
Chemical Engineering Journal. 170:264-269
A kinetic model is proposed for the mass transfer of dissolved lignin from the interior of the chip to the bulk liquor, during the kraft pulping of Eucalyptus globulus wood. The model is based on extensive experimental data which include the dissolve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e856c7875d1479f104c32eb0ef88f4b
https://doi.org/10.1016/j.cej.2011.03.046
https://doi.org/10.1016/j.cej.2011.03.046