Results 11 to 20 of about 6,743 (173)
Revista Brasileira Militar de Ciências, 2020 A acerola, Malpighia sp, é originária das Antilhas, pertence à família botânica Malpighiaceae, dentre aos seus constituintes pode-se citar a vitamina C, carotenoides, ácidos fenólicos, furanos, ácido clorogênico, galato de epigalocatequina, epicatequina,
Blenda Saad Lima da Costa +3 more
semanticscholar +1 more source
Structural Investigation of Poly(ethylene furanoate) Polymorphs [PDF]
Polymers, 2018 α and β crystalline phases of poly(ethylene furanoate) (PEF) were determined using X-ray powder diffraction by structure resolution in direct space and Rietveld refinement. Moreover, the α’ structure of a PEF sample was refined from data previously reported for PEF fiber.
Lucia Maini +5 more
openaire +3 more sources
Synthesis and Characterization of Bio-Based Polyesters: Poly(2-methyl-1,3-propylene-2,5-furanoate), Poly(isosorbide-2,5-furanoate), Poly(1,4-cyclohexanedimethylene-2,5-furanoate) [PDF]
Materials, 2017 In the present study, three new biobased furanoate polyesters with potential use in food packaging applications, named poly(isosorbide furanoate) (PIsF), poly(methyl-propylene furanoate) (PMePF) and poly(1,4-cyclohexane-dimethylene 2,5-furanoate) (PCHDMF) were synthesized.
Zoi Terzopoulou +6 more
openaire +2 more sources
Synthesis and antitubercular activity evaluation of 4-furano-coumarins and 3-furano-chromones
Synthetic Communications, 2018 The synthesis of novel 4-furano-coumarins and 3-furano-chromones has been achieved using silver-mediated oxidative C–H/C–H functionalization of 4-ethynylcoumarin/3-ethynylchromone with ethyl acetoacetate in 80%–90% and 82%–90% yields, respectively. The structure of the synthesized compounds was established on the basis of their spectral data analysis ...
Singh, Ankita +6 more
openaire +1 more source
Revista de Metalurgia, 2004 En las plantas de sinterización se generan emisiones gaseosas que deben cumiplir normativasambientales que tienden a ser, cada vez, más exigentes. En el proceso se utilizan alrededorde 40 Kg de coque y 1.700 Nm de aire por tonelada de sinter útil.
F. García-Carcedo +9 more
doaj +1 more source
Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.By harnessing chalcogen bonding (ChB) catalysis, an exclusive access into a highly stereoselective strain‐release C‐glycosylation pathway was discovered. This was surprisingly not replicable by the conceptually similar halogen bonding (XB) catalysis.
Hao Guo, Charles C. J. Loh
wiley +2 more sources
Compuestos orgánicos volátiles presentes en el aroma de 17 frutas exóticas en Colombia: revisión
Revista Colombiana de Investigaciones Agroindustriales, 2023 El aroma es la sensación obtenida con la activación de los receptores olfativos en la nariz humana y animal, ante la presencia de Compuestos Orgánicos Volátiles (COV o en inglés VOC`s) que son liberados por los organismos como producto de procesos ...
Gonzalo Taborda-Ocampo +3 more
doaj +1 more source
Herramientas para la evaluación de riesgos sobre el ambiente y salud, por la disposición final de residus sólidos urbanos [PDF]
, 2016 En el campo de la protección ambiental y de la salud pública y ocupacional, es necesario controlar, en la medida de lo posible, las fuentes de emisión de contaminantes ambientales y su impacto.
Colomer Mendoza, Francisco José +3 more
core +3 more sources
Revista Brasileira de Ciência do Solo, 2000 Este trabalho objetivou investigar as principais unidades estruturais de ácidos húmicos obtidos do composto de resíduos sólidos urbano (AH-CRSU) e lodo de estação de tratamento de esgoto (AH-LETE) por meio da pirólise acoplada à cromatografia gasosa ...
L. P. Canellas +3 more
doaj +1 more source
Dioxins and furans in breast milk: a case study of mothers from southern Rio de Janeiro, Brazil
Cadernos de Saúde Pública, 2015 A study of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (dl-PCBs) was conducted in a pooled sample of breast milk from 27 primiparous mothers living in 12 locations in the meso-region ...
Aldo Pacheco Ferreira +1 more
doaj +1 more source