Results 11 to 20 of about 12,112 (203)

Remoción de plomo (II) usando lignina obtenida a partir del procesamiento del seudotallo de plátano [PDF]

Acta Agronómica, 2015
Se evaluó la adsorción de iones plomo (Pb2+) sobre lignina recuperada del licor residual generado en el proceso de producción de papel a partir de seudotallos (vástago) de plátano. La eficiencia de recuperación encontrada fue de aproximadamente 82%.
José Herney Ramírez Franco, Maryeni Karina Enríquez Enríquez   +1 more
doaj   +2 more sources

HIDRÓLISE ÁCIDA PARA PRODUÇÃO DE NANO LIGNINA EM PÓ [PDF]

BIOFIX Scientific Journal, 2017
O presente trabalho refere-se à produção e caracterização de nano lignina, ao utilizar uma hidrólise ácida em serragem, resíduo este gerado por serrarias.
Marina Stygar Lopes, Mayara Elita Carneiro, Alan Sulato de Andrade, Daniele Cristina Potulski   +3 more
doaj   +2 more sources

VALORIZAÇÃO DA LIGNINA COMO ANTIOXIDANTE

, 2022
Extraída como subproduto da produção de celulose, a lignina vem sendo alvo de estudos para diversas aplicações na indústria já que possui um baixo custo e a vantagem de ser biodegradável. Esses fatores chamaram atenção da indústria de borrachas, no qual a lignina kraft pode se tornar uma alternativa renovável agindo na forma de antioxidante na ...
Laize De Melo Barroso Gomes, Lousiane Santos De Oliveria, Nelvana Bento De Araújo Gomes, Ranaíze Gomes Leandro Da Silva, Orientador: Professor Alexandre Iartelli   +4 more
openaire   +3 more sources

Assessment of genetically modified soybean 40-3-2 for renewal authorisation under Regulation (EC) No 1829/2003 (application EFSA-GMO-RX-023). [PDF]

EFSA J, 2022
Abstract Following the submission of application EFSA‐GMO‐RX‐023 under Regulation (EC) No 1829/2003 from Bayer Agriculture BV on behalf of Bayer CropScience LP, the Panel on Genetically Modified Organisms of the European Food Safety Authority was asked to deliver a scientific risk assessment on the data submitted in the context of the renewal of ...
EFSA Panel on Genetically Modified Organisms (GMO), Mullins E, Bresson JL, Dalmay T, Dewhurst IC, Epstein MM, Firbank LG, Guerche P, Hejatko J, Moreno FJ, Naegeli H, Nogué F, Rostoks N, Sánchez Serrano JJ, Savoini G, Veromann E, Veronesi F, Camargo AM, Goumperis T, Lenzi P, Lewandowska A, Raffaello T, Streissl F.   +22 more
europepmc   +2 more sources

Complete Extruded Diet: How Does Equine Fecal Microbiota Change During Intake Adaptation? [PDF]

Anim Sci J
ABSTRACT This study aimed to investigate the gradual adaptation of the fecal bacterial community and in vitro fermentative capacity of horses fed a complete extruded diet (CED). Twelve geldings weighing 370 kg were removed from a native pasture and fed coastcross hay (Cynodon spp) for 7 days.
Franzan BC, da Silva Coelho I, Ramos EM, de Souza ARP, de Almeida FQ, Silva VP.   +5 more
europepmc   +2 more sources

Physiological roles of lignins - tuning cell wall hygroscopy and biomechanics. [PDF]

New Phytol
Summary Lignins constitute the second most abundant carbon‐storing biopolymers in the biosphere. These phenolic polymers accumulate in different concentrations, compositions, and localisations within and between cell wall layers and cell types. Lignins were acquired during plant terrestrialisation 450 million years ago, and the diversification of their
Pesquet E, Cesarino I, Kajita S, Pawlowski K.   +3 more
europepmc   +2 more sources

Foliar spectral signatures reveal adaptive divergence in live oaks (Quercus section Virentes) across species and environmental niches. [PDF]

New Phytol
Summary Genomic tools have advanced our understanding of species and population structure, but distinguishing neutral from adaptive evolution remains challenging due to limited methods for measuring a broad spectrum of phenotypic traits. We used spectroscopic data from preserved leaves to test for adaptive divergence among populations of live oaks ...
Hernández-Leal MS, Guzmán Q JA, González-Rodríguez A, Cavender-Bares J.   +3 more
europepmc   +2 more sources

Biochemical composition of cover crop residues determines water retention and rewetting characteristics

Agronomy Journal, Volume 115, Issue 6, Page 3173-3187, November/December 2023., 2023
Abstract When cover crop residues are left on the soil surface, their decomposition is mainly influenced by environmental conditions in residue layers, particularly residue water potential (ψresidue). Thus, models for surface residue decomposition in conservation tillage systems should include a sub‐module that can simulate hourly changes in ψresidue ...
Carley Meeks, Miguel Cabrera, Resham Thapa, Nadia Noor, Steven Mirsky, Chris Reberg‐Horton   +5 more
wiley   +1 more source

In Situ Lignin Sulfonation for Highly Conductive Wood/Polypyrrole Porous Composites

Advanced Materials Interfaces, Volume 10, Issue 1, January 5, 2023., 2023
A facile approach for the fabrication of porous lightweight and mechanical robust wood/polypyrrole composites with high conductivity is demonstrated. The in situ lignin sulfonation approach for native wood structure as a multifunctional platform is advantageous for controlled and improved conductive polymer integration toward sustainable and low‐cost ...
Gabriella G. Mastantuoni, Van Chinh Tran, Isak Engquist, Lars A. Berglund, Qi Zhou   +4 more
wiley   +1 more source

A model for the pyrolysis of two Nordic structural timbers

Fire and Materials, Volume 46, Issue 1, Page 55-68, January/February 2022., 2022
SUMMARY Performance‐based design of the timber structures' fire resistance is often based on the reduced cross section and thus relying on empirical and numerical assessment of the charring propagation. The current work aims to construct models for the pyrolysis of spruce and pinewoods to allow coupled simulations of the cross‐section reduction and ...
Aleksi Rinta‐Paavola, Simo Hostikka
wiley   +1 more source