Zobrazeno 1 - 10
of 21
pro vyhledávání: '"María Graciela Aguayo"'
Autor:
María Graciela Aguayo, Arturo Fernández-Pérez, Claudia Oviedo, Guillermo Reyes, Pablo Reyes-Contreras
Publikováno v:
Nanomaterials, Vol 10, Iss 9, p 1775 (2020)
Kraft pulp cellulose was hydrolyzed using sulfuric acid, under different thermophysical conditions of temperature, time, pulp concentration, and sonication time. The experimental design revealed the effect of these conditions and their interaction on
Externí odkaz:
https://doaj.org/article/f0f35d16e83d4060846b8a3784e9f30f
Autor:
Pablo Reyes, Regis Teixeira Mendonça, María Graciela Aguayo, Jaime Rodríguez, Beatriz Vega, Pedro Fardim
Publikováno v:
Revista Árvore, Vol 37, Iss 1, Pp 175-180 (2013)
As galactoglucomananas são as principais frações de hemiceluloses presentes nas madeiras moles e contêm, principalmente, as hexoses galactose, glicose e manose. O isolamento eficiente e seletivo dessas hemiceluloses é um obstáculo crítico a su
Externí odkaz:
https://doaj.org/article/20ebebb3ed58496291c196dacc073b19
Autor:
María Graciela Aguayo, Regis Teixeira Mendonça, Paulina Martínez, Jaime Rodríguez, Miguel Pereira
Publikováno v:
Revista Árvore, Vol 36, Iss 6, Pp 1163-1172 (2012)
Tension (TW) and opposite wood (OW) of Eucalyptus globulus trees were analyzed for its chemical characteristics and Kraft pulp production. Lignin content was 16% lower and contained 32% more syringyl units in TW than in OW. The increase in syringyl u
Externí odkaz:
https://doaj.org/article/bb0ef5f195ed45cbbf865745aa2eb4ca
Publikováno v:
Maderas: Ciencia y Tecnología, Vol 17, Iss 3 (2015)
The chemical structure of dioxane lignins isolated from two groups of Eucalyptus globulus genotypes with contrasting pulpwood characteristics were evaluated. Six genotypes were selected and separated in two groups (G1 and G2) based on differences in
Externí odkaz:
https://doaj.org/article/de8a42ca10cd44e8b4b94139cb20f7ff
Autor:
Felipe A. Sáez, María Graciela Aguayo, Regis Teixeira Mendonça, Lida Fuentes, Carlos R. Figueroa
Publikováno v:
Acta Physiologiae Plantarum. 44
Autor:
José Navarrete, Gonzalo Gaviño, María Graciela Aguayo, Laura Reyes, Ejnar Trollund, Hugo Torres, Liset Gómez, Claudia Oviedo
Publikováno v:
Forests, Vol 12, Iss 1606, p 1606 (2021)
Forests; Volume 12; Issue 11; Pages: 1606
Forests; Volume 12; Issue 11; Pages: 1606
Radiata pine is the main wood species used in the Chilean construction industry, but it must be protected due to its low natural durability. Chemical protection of wood by impregnation allows for a more efficient utilization of the forest resources b
Autor:
María Graciela Aguayo, Oswaldo Erazo, Claudio Montero, Laura Reyes, William Gacitúa, Liset Gómez, Hugo Torres
Publikováno v:
Forests; Volume 13; Issue 10; Pages: 1636
In this work, the impregnation quality and mechanical properties of Pinus radiata D.Don treated with different copper nanoparticles (CuNP) solutions (named K1 and K2) and a commercial preservative (M) were studied. The impregnation quality of radiata
Autor:
Arturo Fernández Pérez, Guillermo Reyes, Timo Pääkkönen, Orlando J. Rojas, William Gacitúa, María Graciela Aguayo
Publikováno v:
Polymers
Polymers, Vol 11, Iss 4, p 673 (2019)
Volume 11
Issue 4
Polymers, Vol 11, Iss 4, p 673 (2019)
Volume 11
Issue 4
Forestry industries in Chile are facing an important challenge&mdash
diversifying their products using green technologies. In this study, the potential use of Ionic Liquids (ILs) to dissolve and hydrolyze eucalyptus wood (mix of Eucalyptus niten
diversifying their products using green technologies. In this study, the potential use of Ionic Liquids (ILs) to dissolve and hydrolyze eucalyptus wood (mix of Eucalyptus niten
Autor:
Paulina Valenzuela, Pablo Reyes, Regis Teixeira Mendonça, María Graciela Aguayo, William Gacitúa
Publikováno v:
Southern Forests: a Journal of Forest Science; Vol 80, No 4 (2018); 293-300
The objective of this research was to study the chemical and nanomechanical characteristics of native woods grown in southern Chile region. The species analysed were Drimys winteri, Laureliopsis philippiana, Aextoxicon puctatum, Nothofagus alpina, No
Autor:
Omar Uyarte, Arturo Fernández Pérez, Guillermo Reyes, María Graciela Aguayo, R González, William Gacitúa, Claudia Oviedo
Publikováno v:
Polymers, Vol 10, Iss 10, p 1145 (2018)
Polymers
Volume 10
Issue 10
Polymers
Volume 10
Issue 10
In the final process of the bleached kraft pulp there are some cellulose fibers that are separated from the main fibers stream
these fibers are rejected and considered as a low quality fibers, these fibers are known as rejected fiber (RF). In th
these fibers are rejected and considered as a low quality fibers, these fibers are known as rejected fiber (RF). In th