Publications by authors named "Rui Dias Costa"
Grape ( L.) stems, a by-product of winemaking, possess significant potential value due to their rich polyphenolic composition, which allows their exploitation for cosmetic and pharmaceutical applications. This presents a promising opportunity for valorisation aimed at developing innovative products with potential health-promoting effects.
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- The study investigates bioactive compounds in leaf extracts from plants in the Azores, focusing on pigments and phenolic profiles that could enhance health.
- It reveals that certain plants have high levels of chlorophyll, carotenoids, total phenols, and flavonoids, which are linked to strong antioxidant properties.
- Findings from high-performance liquid chromatography show that specific compounds, notably flavonols, contribute significantly to the antioxidant capabilities of these leaf extracts, promoting natural product development for improved health.
The residues generated in the wine industry (pomace, stems, seeds, wine lees, and grapevine shoots) are a potential source of bioactive compounds that can be used in other industries despite being sometimes underestimated. Different extraction methods using various solvents and extraction conditions are currently being investigated. Due to its natural occurrence in wines, safe behavior, and low toxicity when compared to other organic solvents, ethanol is used as an extracting agent.
View Article and Find Full Text PDFTo provide meat safety and consumer protection, appropriate hygiene control measures at an abattoir are required. This study aimed to evaluate the influence of visual fecal contamination level (VFCL) and lairage time (LT) on pig skin (PS) and external (ECS) and internal (ICS) carcass surfaces. The presence of , () and in PS, ECS, and ICS were evaluated.
View Article and Find Full Text PDFIntroduction: Hospital-acquired pneumonia continues to be a frequent complication in the intensive care unit and an important cause of admission in the intensive care unit. The aim of our study was to evaluate the demography, incidence, risk factors, causative bacterial pathogens and outcome of all episodes of Hospital-acquired pneumonia in our unit.
Material And Methods: Prospective observational study, at a tertiary university hospital during one year (2014) including all the cases of hospital-acquired pneumonia in the intensive care unit.
Objective: To test the reliability and validity of the Portuguese version of the Stroke Impact Scale 2.0 (SIS 2.0).
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