Výsledky vyhledávání - "Mariana N. Catrinck"

Phosphate Enrichment of Niobium-Based Catalytic Surfaces in Relation to Reactions of Carbohydrate Biomass Conversion: The Case Studies of Inulin Hydrolysis and Fructose Dehydration

Autor: Filippo Bossola, Antonella Gervasini, Paolo Carniti, Sebastiano Campisi, Mariana N. Catrinck, Reinaldo F. Teófilo

Publikováno v: Catalysts, Vol 11, Iss 1077, p 1077 (2021)
Catalysts
Volume 11
Issue 9

In this work, some physical mixtures of Nb2O5·nH2O and NbOPO4 were prepared to study the role of phosphate groups in the total acidity of samples and in two reactions involving carbohydrate biomass: hydrolysis of polyfructane and dehydration of fruc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1288829dd98ce43c4eab8f8efdbdb8ec
https://doi.org/10.3390/catal11091077

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Direct conversion of glucose to 5-hydroxymethylfurfural using a mixture of niobic acid and niobium phosphate as a solid acid catalyst

Autor: Márcio Henrique Pereira Barbosa, Rogério M. Ribas, Emerson Schwingel Ribeiro, Robson S. Monteiro, Reinaldo F. Teófilo, Mariana N. Catrinck

Publikováno v: LOCUS Repositório Institucional da UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV

The aim of this work was to optimize the acid-catalyzed conversion of glucose into 5-hydroxymethylfurfural (HMF) in an aqueous medium using niobic acid (NbO), niobium phosphate (NbP) and a mixture of both solid acid catalysts. A simplex-centroid mixt

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b927f8023e44a0c6046fd76d1a317a3d
https://doi.org/10.1016/j.fuel.2017.08.035

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MCR-ALS applied to the quantification of the 5-hydroxymethylfurfural using UV spectra: Study of catalytic process employing experimental design

Autor: Reinaldo F. Teófilo, Larissa R. Terra, Mariana N. Catrinck

Publikováno v: Chemometrics and Intelligent Laboratory Systems. 167:132-138

Study of the production of 5-hydroxymethylfurfural (5-HMF) from glucose, applying niobic acid as catalyst, and the quantification of 5-HMF by selective analytical methods are the goals of this work. The high-performance liquid chromatography (HPLC) w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d90da3992c846303836256c89dcfbe4
https://doi.org/10.1016/j.chemolab.2017.06.001

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One-step process to produce furfural from sugarcane bagasse over niobium-based solid acid catalysts in a water medium

Autor: Márcio Henrique Pereira Barbosa, Reinaldo F. Teófilo, Paula S. Barbosa, Mariana N. Catrinck, Helder Rezende De Oliveira Filho, Rogério M. Ribas, Robson S. Monteiro

Publikováno v: Fuel Processing Technology. 207:106482

This study investigated the production of furfural from sugarcane bagasse over niobic acid (Nb2O2·nH2O, called as NbO) or niobium phosphate (NbOPO4·nH2O, called as NbP) in a one-step process performed in water. The variables temperature (T), the ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9d2b1146c3779c24411714f3f5df495
https://doi.org/10.1016/j.fuproc.2020.106482

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Synthesis and antifungal activity of halogenated aromatic bis-γ-lactones analogous to avenaciolide

Autor: Dorila Piló-Veloso, Silvana Guilardi, Natalia A. Liberto, Leandro de Carvalho Alves, Hudson Alves Silvério, Pedro A. Castelo-Branco, Mariana N. Catrinck, Thayane C. M. Nepel, Wilson Pires Flauzino Neto, Mayura M. M. Rubinger, Laércio Zambolim

Publikováno v: Química Nova. 35:948-955

Here we describe the total syntheses and characterization by elemental analyses, infrared and NMR spectroscopy of three new compounds analogous to avenaciolide, a bis-γ-lactone isolated from Aspergillus avenaceus that possesses antifungal activity,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbb74ceda3c3159c0b47a74b06f27e83
https://doi.org/10.1590/s0100-40422012000500016

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