Browsing by Author "Correia, Daniela"
Now showing 1 - 3 of 3
Results Per Page
Sort Options
- Estimated dietary flavonoid intake and major food contributors in the Portuguese population: results from the national food, nutrition and physical activity survey (IAN-AF 2015–2016)Publication . Martins, Sofia; Meireles, Manuela; Caetano, Estela; Correia, Daniela; Carvalho, Catarina; Silva, Catarina Campos; Magalhães, Vânia; Vilela, Sofia; Lopes, Carla; Torres, DuarteFlavonoids are a key class of polyphenols, i.e., phytochemical compounds present in foods and beverages, which have been described as having health benefits in preventing several chronic diseases. Estimating flavonoid intake has already been conducted in several countries but has yet to be performed in Portugal. This study included 5005 participants aged 3–84 years and aimed to estimate dietary flavonoid intake in the Portuguese population, using data from the National Food and Physical Activity Survey 2015–2016, providing information on intake, main food contributors and the socio-demographic factors associated with the intake. Food intake data from the survey was converted to flavonoid intake using a database built to include the most updated USDA databases on flavonoids, isoflavones and proanthocyanidins and the Phenol-Explorer database. The rationale for combining food consumption data and different flavonoid databases using the FoodEx2 classification system was established. Linear regressions assessed the associations between socio-demographic factors and dietary flavonoid intake. The total flavonoid intake of the Portuguese population was estimated to be 107·3 mg/d. Flavanols were the most representative subclass, followed by flavonols, anthocyanidins, flavanones, flavones and isoflavones. Fruits and vegetables were the primary food contributors, providing 31·5 % and 12·4 % of the total flavonoid intake. Adolescents had the lowest total flavonoid intake, and older adults had the highest. This study provides information on the Portuguese population’s dietary flavonoids, allowing for international comparisons. It can also streamline forthcoming investigations into the link between flavonoid consumption and its impact on health, contributing to the future establishment of dietary reference values.
- Unlocking Nature’s Anti-Aging Secrets: The Potential of Natural Mineral Waters Combined with Plant Extracts in CosmeticsPublication . Gama, Ana Rita; Gomes, Carolina P.; Caetano, Cátia; Oliveira, Ana Sofia; Rolo, Joana; Barros, Lillian; Plasencia, Paula; Garcia, Juliana; Correia, Daniela; Alves, Maria José; Martinez-de-Oliveira, José; Palmeira-de-Oliveira, Ana; Palmeira-de-Oliveira, RitaSkin aging is influenced by intrinsic and extrinsic factors, leading to structural changes in the skin. Current anti-aging cosmetic trends emphasize innovative natural ingredients, including plant extracts, thermal waters, and botanical hydrolats. This work aims to develop six natural anti-aging cosmetics (two serums, two day creams, and two night creams) with innovative and non-irritating profiles. The rational design was guided by market analysis and ingredient properties. Prototype formulations were created with two core mixtures: (1) natural mineral water from Termas de Unhais da Serra and Thymus x citriodorus hydrolat and (2) natural mineral water from Termas de Chaves and aqueous Vaccinium myrtillus (blueberry) extract. The products were evaluated for stability (4 degrees C and 40 degrees C, 4 weeks), safety (according to EC Regulation No. 1223/2009), including in vitro testing for skin irritation potential (epiderm model; OECD TG 439). The market study highlighted a gap in anti-aging products combining natural extracts and thermal waters. All prototypes showed desirable textures and remained stable under test conditions. No irritating effects were observed. The results support the development of effective anti-aging cosmetics rooted in natural resources. These innovative products can meet the market demand for natural and sustainable skincare solutions.
- Usage of thermal spring water for optimal skin health: bridging traditional therapy with modern dermatologyPublication . Rocha, Pedro Emanuel; Alves, Maria José; Fidalgo, Cátia; Correia, Daniela; Pedrosa, Silvia; Madureira, Ana RaquelThermal spring waters (TSW) have been employed forntherapeutic purposes across the centuries being increasingly recognized for its unique benefits in skin health, in which immunomodulatory effects play a crucial role. By reviewing the literature, the multifaceted properties of TSW, which arise from its diverse mineral composition as well as its thermal characteristics, revealed the strong potential of these waters to aid in managing various chronic skin disorders, holding also a significant promise in cosmeceutical formulation.