Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hector Mansilla"'
Autor:
Airton Kunz, Renato S. Freire, Jarbas J. R. Rohwedder, Nelson Duran, Hector Mansilla, Jaime Rodriguez
Publikováno v:
Química Nova, Vol 22, Iss 3, Pp 425-428 (1999)
Externí odkaz:
https://doaj.org/article/191eb4e413954a2b922ce57354a9f897
Publikováno v:
Holz als Roh- und Werkstoff. 54:131-135
Five native species from Chile were studied. Lignins isolated from Nothofagus obliqua (roble blanco), Nothofagus glauca (roble colorado), Lithraea Caustica (litre), Quillaja saponaria (quillay) and Cryptocarya alba (peumo), classified as hardwood spe
Autor:
Hector Mansilla, Jorge Villaseñor
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 93:205-209
The ZnO-photocatalysed reaction of kraft black liquor, obtained from P. radiata pulping, was studied to determine the kinetic parameters that govern CO2 evolution. The mineralization reaction exhibits a first-order dependence on the dissolved oxygen
Autor:
Jaime Baeza, Juanita Freer, Nelson Durán, Norma de Magalhães Erismann, Hector Mansilla, Ana Maria Fernández
Publikováno v:
Biotechnology Letters. 12:305-308
We report the delignification ofPinusradiata D Don,Eucalyptusglobulus andEucalyptusgrandis woods (formic acid treated and untreated) by 2 h treatment with a hemin/hydrogen peroxide system. The untreated chips and sawdust ofE.globulus were 30% and 50%
Autor:
Jorge Villaseñor, Juanita Freer, Nelson Durán, Gabriel Maturana, Jaime Baeza, Hector Mansilla
Publikováno v:
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. A, CHEMISTRY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Kraft black liquor was used as a model for effluent from the pulp and paper industry. Photochemical bleaching was attained when dilute samples were photolyzed with UV radiation using ZnO as catalyst. The photochemical mineralization of organic matter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f6565e0da425112eba9cfce1e95b682
Autor:
Jorge Yáñez, Vladimir Fierro, Hector Mansilla, Leonardo Figueroa, Lorena Cornejo, Ramon M. Barnes
Publikováno v:
Journal of Environmental Monitoring; Nov2005, Vol. 7 Issue 12, p1335-1341, 7p
Publikováno v:
Polymer Degradation and Stability. 17:131-149
Photo-chemical degradation of lignocellulosic materials such as wood, cotton, lignin and cellulose and its importance in the development of biotechnology is reviewed. Single cell protein and glucose production related to alcohol production, which are
Publikováno v:
Journal of Photochemistry. 35:209-217
The structural modifications of commercial lignin and lignin-dioxane caused by photochemical reactions were studied. The differential scanning calorimetry technique gave a reasonable correlation of enthalpy changes with fluence of irradiation and rad
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 41:267-273
The degradation of dioxane-lignin from Pinus radiata D. Don caused by ligninase and by horse-radish peroxidase under photochemical pretreatment was studied. The photochemical modifications of the dioxanelignin were followed using UV—visible spectro
Publikováno v:
Journal of Inorganic Biochemistry. 34:105-115
Horseradish peroxidase (HRP)/H2O2 system, as a possible model of lignolytic enzyme, was evaluated. Aerobic peroxidation of lignin involved chemiluminescence, which arose mainly from recombination of OH radicals and carbonate ions (dissolved CO2). The