A5022067473- Bee Products Chemical Analysis
- Spectroscopy and Chemometric Analyses
- Phytochemicals and Antioxidant Activities
- Phytochemistry Medicinal Plant Applications
- Essential Oils and Antimicrobial Activity
- Insect and Pesticide Research
- Pharmaceutical and Antibiotic Environmental Impacts
- Spectroscopy Techniques in Biomedical and Chemical Research
- Fermentation and Sensory Analysis
- Insect Pest Control Strategies
- Water Quality Monitoring and Analysis
- Adsorption, diffusion, and thermodynamic properties of materials
- Water Treatment and Disinfection
- Moringa oleifera research and applications
- Toxic Organic Pollutants Impact
Universidade Tecnológica Federal do Paraná
2014-2023
Faculdade de Pato Branco
2017
Universidade Castelo Branco
2014
Propolis produced by selected bees Apis mellifera were collected from March to June of 2013 and in 2015 analyzed order evaluate the influence climate, colony origin, food supplementation colonies on content total phenolic flavonoid chromatographic analysis antioxidant activity radical scavenging 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH) 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) ferric reducing power (FRAP) methods. The Principal Component Analysis (PCA) was carried...
The extraction process of bioactive compounds from propolis produced by selected bees was optimized using a 2³ factorial design planning to evaluate the effect ethanol concentration, time and temperature on total phenolic antioxidant activity.Analysis flavonoids, activity chemical characterization performed high-performance liquid chromatography with photodiode array (HPLC-PDA) detection were carried out in optimal conditions extraction.Optimizing results suggest that best condition for...
The propolis chemical composition is complex, varied, and closely related to characteristics of the vegetation location where hives are located. objective this work was determine antioxidant activity through FRAP methodology in (raw, macerated, ethanolic extract concentrated extract) using a rapid non-destructive method namely Fourier transform near-infrared (FTNIR) spectroscopy. By results obtained for it can be verified that samples present very diversified profile, collected Três Barras –...
Natural additives are a core topic of food science due to their safety aspects, and among the natural additives, colorants antioxidants stand out. The aim this study was verify potential effect naturally colored extracted from Moringa oleifera leaves, propolis grape pomace on shelf life chicken paté. parameters TBARS, total volatile basic nitrogen (TVB-N), pH color were monitored in paté during 35 days cold storage at temperature 4 ± 1 °C. extracts, which produced highest yields, provided...
Syzygium malaccense belongs to the family Myrtaceae and it is popularly recognised as ‘jambo’ in Brazil. It poorly studied regarding bioactive compounds of fruits leaves. This study aimed at optimizing extraction characterization bioactives from S. Extraction was optimized using a 23 full factorial design evaluate effect ethanol concentration, time temperature on polyphenols antioxidants contents. Analyses phenolic content (Folin-Ciocalteau HPLC-DAD), vitro antioxidant capacities (DPPH, ABTS...
A indústria alimentícia procura ferramentas que a auxilie com precisão em análises de caracterização e controle qualidade seus produtos insumos. espectroscopia no infravermelho médio permite realizar qualitativas quantitativas amostras diversas origens, fornecendo modelagens função suas propriedades químicas físicas partir dados espectroscópicos. Neste trabalho foi avaliado o perfil químico vinhos sucos uvas tintas da região Sudoeste do Paraná, empregando uso transformada Fourier acessório...
Abstract The chemical composition of propolis is complex and varies according to location, seasonality, vegetation where the hives are located. Raw macerated produced in different regions Brazil were assessed iPLS models from FTNIR combined multivariate calibration determine total phenolic content (TPC). spectra raw obtained analyzing samples directly, without treatment or processing, while was submitted milling process using liquid nitrogen. Concerning results, TPC ranged 3.61 90.4 mg GAE g...
A propolis e um material resinoso natural conhecido estudado por apresentar diversas atividades biologicas como antioxidante antimicrobiana. Trabalhos descritos na literatura comprovam que a possui composicao quimica variada complexa, esta intimamente relacionada biodiversidade da flora, regiao geografica clima onde coletada. Propolis produzidas abelhas selecionadas de terceira, quarta quinta geracao foram coletadas entre os meses marco agosto 2013 avaliadas quanto atividade pelos metodos...