A5091330987- Phytochemicals and Antioxidant Activities
- Tea Polyphenols and Effects
- Pesticide Residue Analysis and Safety
- Spectroscopy and Chemometric Analyses
- Heavy Metals in Plants
- Analytical chemistry methods development
- Electrochemical Analysis and Applications
- Analytical Chemistry and Chromatography
- Agricultural and Food Sciences
- Essential Oils and Antimicrobial Activity
- Dye analysis and toxicity
- Analytical Methods in Pharmaceuticals
- Sesame and Sesamin Research
- Ginkgo biloba and Cashew Applications
- Saffron Plant Research Studies
- Edible Oils Quality and Analysis
- Food Supply Chain Traceability
- GABA and Rice Research
- Cholesterol and Lipid Metabolism
- Consumer Attitudes and Food Labeling
- Hibiscus Plant Research Studies
- Phytochemistry Medicinal Plant Applications
- Food Quality and Safety Studies
- Antioxidant Activity and Oxidative Stress
- Advances in Cucurbitaceae Research
Universidade do Estado da Bahia
2017-2023
Universidade Salvador
2017-2021
Southwest Bahia State University
2006-2013
A reliable, simple and accurate method was developed to simultaneously determine 13 bioactive phenolic compounds in guava (Psidium guajava L.) by reversed-phase high-performance liquid chromatography with diode array detection (HPLC-DAD). The proposed methodology fully validated proven successful the analysis of methanolic extracts lyophilized whole guavas at two maturation stages: green ripe. quantification revealed that highest concentrations (mg 100 g− 1 DW) all samples were: gallic acid...
O escopo da presente pesquisa foi desenvolver e validar uma metodologia para extração simultânea de colesterol óxidos utilizando saponificação direta em amostras leite fluido posterior análise por cromatografia líquida alta eficiência fase reversa com detecção arranjo diodos (RP-HPLC-DAD).Foram avaliados os parâmetros analíticos seletividade, linearidade faixa aplicação, precisão inter intradia, recuperação, limites quantificação do método.Os resultados demonstraram que a pode ser empregada...
Knowing the composition of foods is fundamental to assess their potentialities and availability nutrients consuming populations. The objective this work was increase knowledge about licuri fruit (Syagrus coronata) by quantifying fatty acids verifying antioxidant potential in kernel´s pressed oil´s fruit. lipid profile data shows a predominance saturated fats, high levels medium-chain such as lauric myristic acids, very similar coconut oil. Antioxidant activity observed using methods DPPH...
GREEN ANALYTICAL CHEMISTRY METRICS IN THE EVALUATION OF AN ECOLOGICAL METHOD FOR DETERMINATION PESTICIDES BY HPLC-DAD. In recent years, the Brazilian government has authorized several agricultural pesticides, increasing possibility of pollution different ecosystems and food consumed by a large part population. The analytical determination pesticides can be carried out using techniques associated with various methods. Their development validation have been based on obtaining better...
This study aimed to develop an analytical methodology using the extraction technique in solid phase for analysis of phenolic compounds cachaça samples and compare developed cartridges with marketed cartridges.
In this study, a sustainable HPLC-UV-DAD method was developed and validated for the determination of allopurinol in tablets optimization dissolution test using factorial design. The separation analyte from sample matrix achieved 3.01 minutes C8 column (4.6 mm X 150 5 μm), mobile phase 0.1 mol L-1 HCl (25%) + ethanol (50%) ultrapure water by UV detection at 249 nm. presented satisfactory analytical parameters validation (specificity, selectivity, linearity, stability, precision, accuracy,...
Quality assurance is considered to be a fundamental requirement for international trade, especially food and evaluation of matrices in the way they are consumed. In this study, antioxidant activity phenolic profile coffees under different processes (roasted, soluble, caffeinated decaffeinated) were evaluated. A digital printing method using HPLC Neural Networks was used investigate compounds. Algorithms such as Networks, fuzzy logic genetic algorithms some techniques building knowledge bases...