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Cardoso, Liziane Vaz; Tomasini, Débora; Sampaio, Maicon Renato Ferreira; Barbosa, Sergiane Caldas; Kleemann, Natiele; Primel, Ednei Gilberto; Gonçalves, Fábio Ferreira
(2011)
Neste trabalho, foi desenvolvido e validado um método analítico baseado na extração em fase sólida(SPE) e cromatografia líquida acoplada a espectrometria de massas em tandem (LC-APCI-MS/MS)para a determinação e confirmação ...
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Dias, Adriana Neves; Cerqueira, Maristela Barnes Rodrigues; Moura, Renata Rodrigues de; Kurz, Márcia Helena Scherer; Clementin, Rosilene Maria; D'Oca, Marcelo Gonçalves Montes; Primel, Ednei Gilberto
(2012)
This paper describes the optimization of a method of simultaneous determination of glycerides, free and total glycerol in biodiesel ethyl esters from castor oil by using gas chromatography. Changes were proposed for the ...
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Weska, Raquel; Moura, Jaqueline Motta de; Batista, Lucia de Moraes; Rizzi, Jaques; Pinto, Luiz Antonio de Almeida
(Elsevier, 2007)
The use of chitosan in diverse areas is directly related to the polymer’s molecular weight and degree of deacetylation, which depends on the conditions of chitin deacetylation. The aim of the present study consisted of ...
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Kalil, Susana Juliano; Suzan, Rodrigo; Maugeri Filho, Francisco; Rodrigues, Maria Isabel
(2001)
Factorial design and response surface techniques were used to optimize the culture medium for the production of inulinase by Kluyveromyces marxianus. Sucrose was used as the carbon source instead of inulin. Initially, a ...
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Vega, William Renzo Cortez; Fonseca, Gustavo Graciano; Prentice-Hernández, Carlos
(2013)
Surimi is a semi-processed washed fish mince protein concentrate mixed with cryoprotectants for frozen storage, which is the primary constituent of processed foods. Mechanically separated chicken meat (MSCM) is a common ...
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Radmann, Elisangela Martha; Reinehr, Christian Oliveira; Costa, Jorge Alberto Vieira
(2007)
The cyanobacterium Spirulina platensis is extensively used in human nutrition because it is a source of beneficial phenolics, proteins, unsaturated lipids and vitamins. Repeated batch cultivation of photosynthetic ...
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Buffon, Jaqueline Garda; Furlong, Eliana Badiale
(2008)
The objective of this work was to optimize the derivatization reaction for determining deoxynivalenol (DON) by gas chromatography
employing an experimental planning procedure. The factors were: temperature, reaction time, ...
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Santos, Sarita D’Avila dos; Martins, Vilásia Guimarães; Salas-Mellado, Myriam de las Mercedes; Prentice-Hernández, Carlos
(2009)
The enzymatic modification of proteins has been widely studied with the aim of add value to low commercial value fish. The objective of this work was to evaluate and optimize the parameters involved in the production process ...
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Rodrigues, Sherol Acosta; Barbosa, Sergiane Caldas; Furlong, Eliana Badiale; Primel, Ednei Gilberto; Zanella, Renato
(2011)
An evaluation of the pesticides extraction from onion using a modern sample preparation method (QuEChERS) and determination by liquid chromatography tandem mass spectrometry was carried out. All the calibration curves ...
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Andrade, Michele da Rosa; Costa, Jorge Alberto Vieira
(2008)
Water supplemented with 10% or 20% (v/v) of Zarrouk medium was used to cultivate
Spirulina platensis in closed and open bioreactors under controlled conditions (30 ∞C,
32.5 μmol mÐ2 sÐ1, 12 h light/dark photoperiod) and ...
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Clementin, Rosilene Maria; Takashima, Keiko
(1993)
The rate of lactic acid, HL, oxidation by vanadium(V), V(V), in sulphuric acid solution has been measured by monitoring, spectrophotometrically, the absorbance change of vanadium(IV), V(IV) in 760 nm at 30°C. This oxidation ...
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Fonseca, Gustavo Graciano; Gandra, Eliezer Avila; Sclowitz, Liana Fossati; Corrêa, Ana Paula Antunes; Costa, Jorge Alberto Vieira; Levy, Jose Alberto
(2008)
A RAPD methodology for differentiation and characterization of the fungal edible species Pleurotus ostreatus and Pleurotus sajor-caju was developed. Two of the most usual methods of DNA extraction were studied. The first ...
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Quintela, Bárbara de Melo; Ferreira, Anna Paula Guida; Farage, Michèle Cristina Resende; Lobosco, Marcelo
(EDGRAF, 2010)
The Asymptotic Expansion Homogenization (AEH) technique is used to estimate the
effective properties of heterogeneous media with periodical microstructure. A considerable
computational effort can be necessary even though ...
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Ainsworth Junior, George Oliveira; Ribeiro, Fernando Luiz Bastos; Magluta, Carlos
(EDGRAF, 2008)
This paper presents a parallel implementation of the implicitly restarted Lanczos
method for the solution of large and sparse eigenproblems that occur in modal analysis of
complex structures using the finite element ...
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Burkert, Janaina Fernandes de Medeiros; Kalil, Susana Juliano; Maugeri Filho, Francisco; Rodrigues, Maria Isabel
(2006)
The conditions for maximization enzymatic activity were determined using experimental design and inulinase from Kluyveromyces marxianus ATCC 16045. The effects of substrate concentration (sucrose and inulin), pH and ...
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Dors, Giniani Carla; Bierhals, Vânia da Silva; Furlong, Eliana Badiale
(2011)
The objective of this work was to evaluate the incidence of aflatoxin B1 (AFB B1), deoxynivalenol (DON), ochratoxin A (OTA), and zearalenone (ZEA) in parboiled rice with respect to its chemical composition. Eight lots from ...
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Lima, Cleiva Aguiar de; Cousin, Claudia da Silva; Galiazzi, Maria do Carmo
(2010)
Apresentam-se resultados de uma experiência de orientação coletiva com pressuposto na (auto) formação na relação com o outro. O foco é o processo de formação de pesquisadores. Apresentam-se narrativas desde suas formações ...
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Andrade, Michele da Rosa; Camerini, Felipe Vieira; Costa, Jorge Alberto Vieira
(2008)
Photosynthetic microorganism cultures, such as microalgae, represent one of the alternatives for fossil CO2 emissions mitigation. Carbon supply is the major cost component in microalgal cultures. Aiming to enhance the ...
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Costa, Jorge Alberto Vieira; Radmann, Elisangela Martha; Cerqueira, Vanessa Sacramento; Santos, Glória Cristina dos; Calheiros, Maurício Neves
(2006)
Estudos recentes têm explorado o uso de microalgas para obtenção de lipídios, principalmente os de maior valor comercial como o ácido -linolênico. A microalga Chlorella possui ácidos graxos poliinsaturados, vitaminas e ...
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Morais, Michele Greque de; Costa, Jorge Alberto Vieira
(2008)
As microalgas são consideradas fontes potenciais de diversos compostos químicos. Os ácidos graxos obtidos da biomassa podem apresentar efeitos terapêuticos em humanos e podem ser usados para produção de biodiesel. Objetivou-se, ...