Maria Célia Pires Costa

ORCID: 0000-0002-7713-3405
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About
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Research Areas
  • Plant-Derived Bioactive Compounds
  • Insect and Pesticide Research
  • Bee Products Chemical Analysis
  • Edible Oils Quality and Analysis
  • Electrostatics and Colloid Interactions
  • Sesquiterpenes and Asteraceae Studies
  • Plant tissue culture and regeneration
  • Natural Antidiabetic Agents Studies
  • Food Chemistry and Fat Analysis
  • Ginkgo biloba and Cashew Applications
  • Innovative Microfluidic and Catalytic Techniques Innovation
  • Phytochemistry Medicinal Plant Applications
  • African Botany and Ecology Studies
  • Microfluidic and Bio-sensing Technologies
  • Mycotoxins in Agriculture and Food
  • Essential Oils and Antimicrobial Activity
  • Proteins in Food Systems
  • Coagulation and Flocculation Studies
  • Water Quality Monitoring and Analysis
  • Meat and Animal Product Quality
  • Plant biochemistry and biosynthesis
  • Natural product bioactivities and synthesis
  • Electrohydrodynamics and Fluid Dynamics
  • Microfluidic and Capillary Electrophoresis Applications

Universidade Estadual do Maranhão
2013-2024

Universidade Estadual de Campinas (UNICAMP)
1987-1988

Euterpe oleracea Mart., a plant from the Amazon region, is commonly known as açaí or juçara; it has high nutritional value and elevated levels of lipids, proteins, minerals. Açaí an abundant much consumed fruit by local population, studies have demonstrated that rich in phytochemicals with antioxidant, anti-inflammatory, anticancer activities. Therefore, aim this study was to test for activity different human malignant cell lines. Cell lines derived breast colorectal adenocarcinomas were...

10.1186/1472-6882-14-175 article EN cc-by BMC Complementary and Alternative Medicine 2014-05-29

Solid lipid nanoparticles (SLNs) represent promising nanostructures for drug delivery systems. This study successfully synthesized SLNs containing different proportions of babassu oil (BBS) and copaiba oleoresin (COPA) via the emulsification–ultrasonication method. Before SLN synthesis, identification quantification methyl esters, such as lauric acid β-caryophyllene, were performed GC-MS analysis. These esters used chemical markers assisted in encapsulation efficiency experiments. A 22...

10.3390/nano14121014 article EN cc-by Nanomaterials 2024-06-12

A composição de ácidos graxos seis amostras Orbignya phalerata diferentes cidades do estado Maranhão foi estudada.Os óleos foram extraídos utilizando extrator Soxhlet por duas metodologias e a avaliada cromatografia gasosa-espectrometria massas (CG-EM).O teor da fração lipídios revelou que o solvente usado influencia na extração, sendo maior porcentagem obtida com hexano.O variou 62,46-67,45%, predominância saturados (80,32-87,80%), principalmente ácido láurico (C12:0) percentual...

10.5935/0103-5053.20130045 article PT cc-by Journal of the Brazilian Chemical Society 2013-01-01

In this work, the efficient removal of Remazol Turquoise textile dye onto water hyacinth ( Eichhornia crassipes ) from aqueous solutions was investigated by batch method. The collected, washed, dried, crushed and treated with a 0,25 mol L -1 HNO 3 , at 50 °C 24 h. Parameters such as pHpzc, pH effect, contact time temperature were considered. kinetic adsorption data analyzed using Lagergren, Ho, Zeldowitsch (Elovich), Weber-Morris models, Langmuir, Freundlich, Tempkin, Redlich-Peterson, Sips...

10.17807/orbital.v7i2.622 article EN Orbital - The Electronic Journal of Chemistry 2015-06-30

The fatty acid composition of six Orbignya phalerata samples different cities from Maranhão State (Brazil) was studied. oils were extracted by two methods using Soxhlet extractor and the evaluated gas chromatography-mass spectrometry (GC-MS) analysis. lipid fraction content showed that solvent used influences extraction, highest percent obtained with hexane. Lipid ranged 62.46-67.45%, predominance saturated acids (80.32-87.80%), mainly lauric (C12:0) 44.86 to 52.15%. Multivariate analysis...

10.1590/s0103-50532013000200024 article EN cc-by Journal of the Brazilian Chemical Society 2013-02-01

HIGHLIGHTS Production of lipid nanoemulsions (<100 nm) industrial interest with low energy demand. The antioxidant properties babassu oil have been improved and the are not cytotoxic. Babassu is a food medicinal product. nanoemulsion strategic for developed new antioxidants phytotherapeutics.

10.1590/1678-4324-2021190387 article EN cc-by-nc Brazilian Archives of Biology and Technology 2021-01-01

Abstract Polymer latexes can be fractionated by size and chemical composition through osmocentrifugation. Density gradients are formed centrifuging Ficoll Percoll solutions in dialysis cells; mixed polymer latex zones layered over these centrifuged again, leading to separated bands from which may collected further analyzed. Zone migration rates the osmocentrifugation experiment faster than standard centrifugation tubes.

10.1002/app.1987.070340234 article EN Journal of Applied Polymer Science 1987-08-05

Background: Species of mycotoxin-producing fungi are potentially dangerous to humans and animals. The liver is the best-known organ action these substances. aim this study was isolate microscopic from honey investigate cytotoxic effect extract Penicillium sp. in an experimental model. Methods: Honey samples were cultured Sabouraud agar. After isolated identified microscopically, colonies genus transplanted dextrose agar culture medium. its development, they processed obtain extract. Eighteen...

10.33448/rsd-v11i14.35997 article EN Research Society and Development 2022-10-23

Com o objetivo de verificar as caracteristicas fisico-quimicas amostras meis provenientes do municipio Brejo, foram analisadas oito amostras, sendo quatro obtidas diretamente dos apicultores e coletadas das colmeias. As analises compreenderam a determinacao umidade, acidez, acucares redutores, sacarose aparente, hidroximetilfurfural (HMF), minerais cor. assepticamente colmeias apresentaram-se dentro padroes estabelecidos pela legislacao brasileira para os parâmetros fisico-quimicos, apenas...

10.18817/pef.v19i1.322 article PT Pesquisa em Foco 2012-06-08
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