Percorrer por autor "Mata, Fernando"
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- Innovative fortified kale soup formulation designed for the elderlyPublication . Duarte, Cristina; Pinheiro, Rita; Mata, Fernando; Pinto, Elisabete; Fernandes, Ângela; Vaz-Velho, ManuelaThe nutritional needs of the elderly require immediate attention. Strategies to incorporate healthy, high-fibre, protein-rich ingredients into traditional diets have been identified to enhance health benefits. This study aimed to develop a new food product specifically for older adults, using kale (Brassica oleracea L. var. acephala DC), and to evaluate its nutritional, sensory, and antioxidant properties. Acceptance was assessed among institutionalised elderly individuals in Galicia (Spain) and Northern Portugal. Fresh kale, both blanched and nonblanched, was air-dried at 80 degrees C for 2 h. The dehydrated kale was then ground into small particles and/or powder. Blanching did not negatively affect the dehydrated samples' protein, fibre, or carbohydrate content. The sensory analysis showed 0.5 %-0.8 % kale enrichment improved taste and texture, balancing appeal without bitterness or roughness from higher concentrations. Incorporating non-blanched dehydrated kale (at concentrations of 0.5 %, 0.8 %, and 1.0 %), pea protein isolate (0.58 %), and calcium lactate (0.25 %) into a traditional soup base resulted in a product with a higher protein content. A 240 g serving of this soup (dehydrated kale 0.8 %: sliced 0.5, and flour 0.3) provided approximately 10 % of the daily dietary fibre recommendation. The nutrient-dense soup was well received (66 %) by the Portuguese and was accepted (52 %) by Galician elders, offering a viable alternative to commercial nutritional supplements and common chewing hard foods rich in fibre and protein.
- Institutional trust as a driver of product boycotts in EuropePublication . Baptista, Nuno; Dos-Santos, Maria; Mata, Fernando; Silva, Natacha JesusDespite the significant growth in consumer boycotts, research has devoted insuffi- cient attention to the institutional factors that may motivate consumers to engage in such behaviour. This article aims to address this research gap. The main objective is to analyse the factors that affect consumer boycotts from an institutional sustainabil- ity perspective, by focusing on a specific dimension of institutional sustainability: institutional trust. Information and data came from the 2023 round of the European Social Survey, a cross-national survey covering 25 Countries. The article applies a binomial univariable logit model to test the influence of institutional trust and other potential drivers on boycott decisions and a multivariable binomial logistic regres- sion to explore possible interrelationship between independent variables. The results confirm that boycotts are affected by institutional trust and other factors including demographic and socio-economic characteristics of the consumers, consumers’ per- ception of ICT, satisfaction with public institutions, and consumers’ evaluation of personal well-being. This article contributes to political consumerism literature by focusing on the impact of institutional trust in boycotting behaviour. This relation- ship is underexplored in existing literature, since most literature researches con- sumer boycotts from a triple-bottom perspective and neglects the effects of the insti- tutional dimension of sustainability in consumer behaviour. The article brings new insights into the motivations of consumers at the political and institutional levels and opens new directions for future research to explore institutional sustainability related to the good practices of governance.
- Weather and seasonal effects in behavioural patterns for grazing cattlePublication . Paixão, Gustavo; Mata, Fernando; Cerqueira, Joaquim; Araújo, José PedroWeather conditions influence grazing cattle behaviour, affecting activities like grazing, ruminating, and resting. Understanding these behavioural responses to temperature, humidity, wind, and solar radiation is essential for managing livestock welfare and productivity amid changing climate patterns. The study monitored 20 Minhota breed cattle year-round, from January 1 to December 31, 2024 using GPS-accelerometer collars in Northern Portugal. Behaviour and weather data were analysed via canonical correlation and Kruskal-Wallis tests to assess seasonal impacts on activity patterns and environmental influences. Significant differences (p < 0.001) were found between all the analysed behaviours between the seasons. Grazing and walking peaked in spring and summer, following greater pasture availability. Conversely, resting and rumination increased in autumn and winter, reflecting lower energy demands and greater reliance on roughage. All recorded behaviours were influenced by the temperature indexes and solar radiation (p < 0.001) and the temperature-humidity-sun-wind index correlated most strongly with resting time reductions (-0.62). Surprisingly, moderate heat stress did not suppress grazing and other behaviours like eating or playing. Rainfall negatively affected grazing while increasing rumination and resting (p < 0.001). Canonical correlation revealed strong links between behaviour and environment, and the two canonical covariate pairs (CCP) explain 79.9 % of the variation between the two sets of variables. Seasonal and heat-related factors shaped distinct activity-rest patterns, highlighting cattle's adaptive strategies and the importance of climate-aware livestock management. These findings highlight the need for climate-adaptive livestock management, including strategic feeding, shelter provision, and flexible grazing practices to mitigate climate change impacts.