Bruna Aparecida Souza Machado

ORCID: 0000-0003-1655-0325
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About
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Research Areas
  • Agricultural and Food Sciences
  • Bee Products Chemical Analysis
  • Essential Oils and Antimicrobial Activity
  • SARS-CoV-2 and COVID-19 Research
  • Textile materials and evaluations
  • SARS-CoV-2 detection and testing
  • Phytochemicals and Antioxidant Activities
  • Phytochemistry Medicinal Plant Applications
  • Electrospun Nanofibers in Biomedical Applications
  • Advanced Cellulose Research Studies
  • Nanocomposite Films for Food Packaging
  • Food Chemistry and Fat Analysis
  • Fermentation and Sensory Analysis
  • Public Health in Brazil
  • Sensory Analysis and Statistical Methods
  • biodegradable polymer synthesis and properties
  • Insect and Pesticide Research
  • Engineering Applied Research
  • Botanical Research and Applications
  • COVID-19 Clinical Research Studies
  • Metallurgy and Material Forming
  • Infection Control and Ventilation
  • Healthcare Regulation
  • Advanced Manufacturing and Logistics Optimization
  • Biosensors and Analytical Detection

Serviço Nacional de Aprendizagem Industrial
2015-2024

Mathematics Research Center
2016-2024

Fundação Oswaldo Cruz
2023-2024

Serviço Nacional de Aprendizagem Comercial
2006-2023

Universidade Federal Fluminense
2020-2023

Universidade Federal da Bahia
2008-2021

University of California, San Diego
2021

Universidade Federal do Recôncavo da Bahia
2021

Universidade do Estado da Bahia
2020

Hospital São Vicente
2020

The variations in the chemical composition, and consequently, on biological activity of propolis, are associated with its type geographic origin. Considering this fact, study evaluated propolis extracts obtained by supercritical extraction (SCO2) ethanolic (EtOH), eight samples different types (red, green brown), collected from regions Brazil. content phenolic compounds, flavonoids, vitro antioxidant (DPPH ABTS), Artepillin C, p-coumaric acid antimicrobial against two bacteria were...

10.1371/journal.pone.0145954 article EN cc-by PLoS ONE 2016-01-08

Propolis is known for its biological properties and preparations have been continuously investigated in an attempt to solve the problem of their standardization, issue that limits use propolis food pharmaceutical industries. The aim this study was evaluate vitro antioxidant, antimicrobial, antiparasitic, cytotoxic effects extracts red, green, brown from different regions Brazil, obtained by ethanolic supercritical extraction methods. We found both these methods showed concentration-dependent...

10.1371/journal.pone.0172585 article EN cc-by PLoS ONE 2017-03-30

Propolis is a natural product with many demonstrated biological activities and propolis extract has been used in the food, pharmaceutical cosmetics industries. Different works have showed variations chemical composition, consequently, on activity of that are associated its type geographic origin. Due to this study evaluated extracts obtained through supercritical extraction ethanolic (conventional) three samples different types (red, green brown), collected from regions Brazil (state Bahia)....

10.1371/journal.pone.0207676 article EN cc-by PLoS ONE 2018-12-04

Abstract The main objective of this review is to approach and highlight the applications Supercritical Fluid Extraction (SFE) through search in scientific papers patents. principles technique identification works developed different areas, such as food science, pharmaceuticals, chemical residues, biofuel, polymers are presented. Additionally, it presents new innovative combined methods where SFE has been used, well perspectives technology profile countries that own rights for use patent...

10.1080/01496395.2013.811422 article EN Separation Science and Technology 2013-08-27

Dengue, chikungunya and Zika are arboviruses transmitted by mosquitos of the genus Aedes have caused several outbreaks in world over past ten years. Morphological identification is currently restricted due to small number adequately trained professionals. We implemented a computational model based on convolutional neural network (CNN) extract features from mosquito images identify adult mosquitoes species aegypti, albopictus Culex quinquefasciatus. To train CNN perform automatic...

10.1371/journal.pone.0210829 article EN cc-by PLoS ONE 2019-01-14

Propolis is a complex mixture of resinous and balsamic material collected from the exudates plants, shoots, leaves by bees. This study evaluated red propolis extracts obtained conventional (ethanolic) extraction ultrasound-assisted six samples different regions northeastern Brazil. The total phenolic compounds flavonoids, in vitro antioxidant activity, concentration formononetin kaempferol cytotoxicity against four human tumor cell lines were determined for all twelve extracts. Significant...

10.1371/journal.pone.0219063 article EN cc-by PLoS ONE 2019-07-05

Beer has been one of the most consumed alcoholic beverages worldwide. However, incorporation adjuncts in beer can add new organoleptic and functional characteristics to beverage. For this, Beauregard sweet potato shows high potential due being a rich source starch many bioactive compounds. The aim this study was develop best process condition produce Sweet with enhanced nutritional antioxidant properties good sensory characteristics. samples showed increased activity especially β-carotene...

10.1016/j.foodchem.2019.126087 article EN publisher-specific-oa Food Chemistry 2019-12-24

The most-used method for essential oil extraction is steam distillation due to its simplicity and low investment requirements. Due the importance of this extractive method, technological updates represent an immense opportunity improving component production. In order evaluate how such have been applied production, in study, we conducted a prospection. A total 490 patent documents were retrieved indicators evaluated, which included publication trends, main applicants inventors prospected...

10.3390/su14127119 article EN Sustainability 2022-06-10

The aim of this study was to determine the best processing conditions extract Brazilian green propolis using a supercritical extraction technology. For purpose, influence different parameters evaluated such as S/F (solvent mass in relation solute mass), percentage co-solvent (1 and 2% ethanol), temperature (40 50°C) pressure (250, 350 400 bar) carbon dioxide. Global Yield Isotherms (GYIs) were obtained through evaluation yield, chemical composition extracts also total phenolic compounds,...

10.1371/journal.pone.0134489 article EN cc-by PLoS ONE 2015-08-07

The aim of this study was to characterize and determine the bi-functional efficacy active packaging films produced with starch (4%) glycerol (1.0%), reinforced cellulose nanocrystals (0–1%) activated alcoholic extracts red propolis (0.4 1.0%). used in were extracted from licuri leaves. characterized using moisture, water-activity analyses water vapor-permeability tests tested regarding their total phenolic compounds mechanical properties. antimicrobial antioxidant evaluated by monitoring use...

10.1371/journal.pone.0112554 article EN cc-by PLoS ONE 2014-11-10

The economic and social impacts due to diseases transmitted by mosquitoes in the latest years have been significant. Currently, no specific treatment or commercial vaccine exists for control prevention of arboviruses, thereby making entomological characterization fundamental combating such as dengue, chikungunya, Zika. morphological identification mosquitos includes a visual exam samples. It is time consuming requires adequately trained professionals. Accordingly, development new automated...

10.1371/journal.pone.0234959 article EN cc-by PLoS ONE 2020-07-14

Grape seeds are an important byproduct from the grape process. The objective of this work was to evaluate effect experimental parameters (temperature and time pretreatment with ultrasound) obtain seed oil using low pressure (Soxhlet-Sox Bligh Dyer-BD) high (supercritical carbon dioxide-SFE) methods. best condition for samples 30 min sonication at °C before extraction by Sox or BD. Ultrasound efficient increase yield 32.10 (Sox), 20.31 (BD) 12.54% (SFE), depending on method used as well as,...

10.3390/molecules25071634 article EN cc-by Molecules 2020-04-02

Brazilian raw propolis samples (brown, green, red, and yellow) were investigated to evaluate the content of three elements nutritional value (Cu, K, Se) toxic metals (As, Cd, Pb). The ( n = 19) obtained from different regions Brazil analysed by atomic absorption spectrometry after microwave-assisted digestion. A descriptive analysis variables was carried out, nonparametric tests (Kruskal–Wallis or Mann–Whitney) performed verify differences in metal contents. elemental concentrations...

10.1155/2020/4395496 article EN cc-by The Scientific World JOURNAL 2020-01-22

Pharmacovigilance plays a central role in safeguarding public health by continuously monitoring the safety of vaccines, being critical climate vaccine hesitancy, where trust is paramount. strategies employed to gather information on adverse events following immunization (AEFIs) include pre-registration data, media reports, clinical trials, and societal reporting. Early detection AEFIs during trials crucial for thorough analysis preventing serious reactions once vaccines are deployed. This...

10.3390/ph17060807 article EN cc-by Pharmaceuticals 2024-06-19
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