Results 41 to 50 of about 188 (86)

Stabilizing Copper(I) Complexes by Terminal Olefinic Side Arms and Studying Their Reactivity Towards Oxidation

European Journal of Inorganic Chemistry, Volume 28, Issue 1, January 2, 2025.
Olefinic side arms can stabilize copper(I) complexes otherwise susceptible to disproportionation. However, whether and how strongly the complexes are stabilized highly depends on the position and length of the olefinic sidearm. Additionally, the reactivity of the copper(I) complexes towards dioxygen was investigated.
Alexander Granichny, Christian Würtele, Siegfried Schindler   +2 more
wiley   +1 more source

Aceitabilidade e estabilidade físico-química de barras de cereais elaboradas à base de aveia e linhaça dourada

Brazilian Journal of Food Technology, 2013
Matérias-primas de elevado valor nutricional e com propriedades funcionais devem ser utilizadas no desenvolvimento de produtos benéficos à saúde do consumidor.
Rosana Colussi, Fabiana Baldin, Barbara Biduski, Carla Noello, Valéria Hartmann, Luiz Carlos Gutkoski   +5 more
doaj   +1 more source

Direct Spectroscopic Confirmation of the Oxygen‐Centered Diradical Character of the Tetraoxidorhenium(VII) Cation [Re(O)4]+

Chemistry–Methods, Volume 4, Issue 12, December 2024.
Highly reactive [ReO4]+ combines rhenium in its highest oxidation state with oxygen‐centered diradical character of its oxygen ligands in the small volume of only one pentaatomic entity. Abstract Mononuclear inorganic diradical species are scarce. Here, we confirm, via X‐ray absorption spectroscopy in the gas phase combined with computational studies ...
Mayara da Silva Santos, Robert Medel, Simon Kruse, Max Flach, Olesya S. Ablyasova, Martin Timm, Bernd von Issendorff, Konstantin Hirsch, Vicente Zamudio‐Bayer, Sebastian Riedel, J. Tobias Lau   +10 more
wiley   +1 more source

Photochemical Synthesis and Characterization of a Uranyl Peroxide Triethylamine N‐Oxide Dimer

European Journal of Inorganic Chemistry, Volume 27, Issue 28, October 1, 2024.
X‐ray diffraction studies on a photochemically synthesized uranyl peroxide complex revealed ⋅OH radical oxidation of a tertiary amine to an amine‐N‐oxide and temperature dependent intermolecular hydrogen bonding interactions with uranyl cations, and the vibrational manifestations thereof were explored using Raman spectroscopy. Abstract A μ‐peroxido‐bis[
Brett Lottes, Korey P. Carter
wiley   +1 more source

STABILITY OF ENRICHED BUTTERS WITH PEPPER AND PUMPKIN CAROTENOIDS

Revista INGI, 2019
Antioxidantes naturais podem ser considerados promissores para estabilização oxidativa da manteiga, especialmente os carotenoides, pigmentos naturais, caracterizados pela coloração (amarelo, vermelho e laranja) e potencial antioxidante.
Natália Reis Soares, Jenisson Linike Costa Gonçalves, Débora Eloá Lima Santos, Paula Caroline dos Santos Gomes, Antônio Martins de Oliveira Junior, Jane de Jesus da Silveira Moreira   +5 more
doaj  

Influência da relação superfície/volume e do tempo de fritura sobre as alterações da mistura azeite de dendê-óleo de soja Factors influence of surface/volume ratio and frying time on the alterations to the "Dendê" and soybean oil mixture

Ciência e Agrotecnologia, 2006
Objetivou-se com este estudo determinar a influência dos fatores relação superfície/volume (S/V) e tempo de fritura sobre a alteração da mistura azeite de dendê-óleo de soja em frituras descontínuas de batatas chips.Foram realizados dois procedimentos de
Cassia Roberta Malacrida, Neuza Jorge
doaj   +1 more source

Unusual Stability of an End‐on Superoxido Copper(II) Complex under Ambient Conditions

Chemistry – A European Journal, Volume 30, Issue 41, July 19, 2024.
The unusual stability of an end‐on superoxido copper complex, [CuII(Me6tren)(O2⋅−)]+ (Me6tren=tris(2‐dimethyl‐aminoethyl)amine), observed in an oxygen‐enhanced atom transfer radical polymerization (ATRP), was investigated. It was found that the corresponding peroxide complex and the complexes [CuI(Me6tren)(DMSO)]+ and [CuII(Me6tren)(OH)]+ participate ...
Chiara Eleonora Campi, Kostas Parkatzidis, Athina Anastasaki, Siegfried Schindler   +3 more
wiley   +1 more source

Plant‐based meat analogues marketed in Catalonia: analysis of contaminants, essential elements, microbiological and physicochemical status, dietary intake estimation and health risk assessment

Food Risk Assess Europe, Volume 2, Issue 3, July 2024.
Abstract The latest barometer of food safety in Catalonia conducted by the Catalan Food Safety Agency (ACSA for its initials in Catalan) in 2021 shows that 28.7% of the population consumes meat analogues (substitutes). The main reasons for consuming this type of food are animal welfare, followed by environmental and health reasons.
Martí Nadal Lomas, Nieves González Paradell, Victòria Castell Garralda, Laura Alcalde Sanz, Josep Calderón, Sara Sabaté   +5 more
wiley   +1 more source

Aspectos químico-físicos del aceite de girasol ozonizado

Revista CENIC Ciencias Químicas, 2004
El conocimiento de las propiedades químico-físicas de los aceites vegetales ozonizados es de gran importancia para su caracterización e identificación. En este estudio se realizó una correlación entre la densidad relativa y la viscosidad con el índice de
Rebeca Hernández Tápanes, Goitybell Martínez Téllez, Maritza F. Díaz Gómez   +2 more
doaj  

Utilização de argila residual recuperada como meio adsorvente de óleo de fritura para produção de biodiesel

Evidência, 2019
Para que os óleos atinjam qualidade sensorial desejada, eles passam por etapas de refino. A clarificação é uma dessas etapas, em que são usadas argilas clarificantes as quais aderem pigmentos indesejados naturais do óleo, tornando-o visualmente mais ...
Beatriz Fernanda Bonfim de Souza, Michel Rocha Baqueta, Bruno Cesar Circunvis, Paulo Henrique Março, Ailey Aparecida Coelho Tanamati   +4 more
doaj   +1 more source