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Estudo da qualidade do leite in natura recebido pela Usina Escola de Laticínios da UFSM
(Universidade Federal de Santa Maria, 2013-02-21)
Milk is one of the most important foods for human society. Its main components are water, lactose, fat, protein and minerals. It is a delicate and highly perishable product, with its physical, chemical and biological easily ...
Síntese de novas azinas trifluormetil substituídas e derivados a partir de reações de heterociclização de trifluoracetil enol éteres com diamino arenos
(Universidade Federal de Santa Maria, 2013-12-13)
The present research describes the study of synthetic strategies for obtaining of polyheterocyclic systems trifluoromethyl substituted from simple precursors: 4-alkoxy-1,1,1-trifluoroalk-3-en-2-ones (1), of formula ...
Estudo comparativo da bioatividade de compostos fenólicos em plantas medicinais
(Universidade Federal de Santa Maria, 2013-09-25)
Phenolic compounds are secondary metabolites, widely distributed in the plant
kingdom, which present antiinflamatory, antibacterial, antiviral, antialergical and
antitumoral activities, in addition to antioxidant activities. ...
Síntese de Seleno-Isoxazóis e Seleno-Indóis via Reações de Ciclização Intramolecular mediadas por Cloreto Férrico
(Universidade Federal de Santa Maria, 2013-03-05)
This work reports the synthesis of a series of 4-organoselenyl-isoxazoles (19 examples), prepared via FeCl3/diorganyl diselenides-promoted intramolecular cyclization of alkynone O-metyloximas. In general, the selenyl-isoxazoles ...
Síntese de Calcogenofenos e Isoquinolinas via Reações de Ciclização Intramolecular
(Universidade Federal de Santa Maria, 2013-11-26)
In the first part of this work, a series of selenophenes and tellurophenes were prepared starting from of (Z)-chalcogenoenynes, by employing FeCl3 diorganyl dichalcogenide-mediated intramolecular cyclization. In general, ...
Desenvolvimento de método para a determinação simultânea de resíduos de agrotóxicos e medicamentos veterinários em solo por UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2013-08-30)
Typically, soil is the final destination of pesticides applied in agriculture and of veterinary drugs employed in animal production. The global concern about the possible consequences of the increased use of these compounds ...
Análise das propriedades dinâmicas e estruturais da água confinada entre placas hidrofóbicas
(Universidade Federal de Santa Maria, 2013-04-26)
In this work we studied the properties of confined water by graphene sheets via Classical
Molecular Dynamics. The main objective of this dissertation is to understand how the
structural and dynamic properties of confined ...
Método multirresíduo para determinação de micotoxinas em vinho por UPLC-MS/MS
(Universidade Federal de Santa Maria, 2013-01-08)
A fast multimethod using liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was implemented and optimized to yield a complete determination of 36 mycotoxins in wine samples. Extraction was performed with acetonitrile, ...
Remoção de hidrocarbonetos policíclicos aromáticos por substratos sólidos estudos com amberlite XAD-2, polietileno, poliuretano, sílica e fibra de quartzo
(Universidade Federal de Santa Maria, 2013-09-19)
Polycyclic aromatic hydrocarbons (PAHs) are a class of compounds characterized by having two or more condensed aromatic rings. These substances, as well as their nitrated and oxygenated derivatives, can be found widely ...
Estudo fitoquímico e avaliação das atividades antimicrobiana, de inibição enzimática e antitumoral de Erythrina crista-galli nativa do RS
(Universidade Federal de Santa Maria, 2013-09-05)
The phytochemical study of the crude extract hexane, methanol and fractions (acid ether, basic ether and basic acetate) from the stem bark of E. crista-galli (Fabaceae) resulted in the isolation of four compounds: The ...