III. Unidades de Investigação, Desenvolvimento e Outras
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Percorrer III. Unidades de Investigação, Desenvolvimento e Outras por Objetivos de Desenvolvimento Sustentável (ODS) "02:Erradicar a Fome"
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- Documentos das provas de agregação de Maria Dulce Carlos Antunes. Titulo da Lição: Sustentabilidade no manuseamento pós-colheita de frutosPublication . Antunes, Maria DulceRelatório de Unidade Curricular sobre o programa, conteúdos e métodos de ensino. Para apreciação em provas de agregação em Ciências Agrárias de acordo com a alínea ii) do ponto 3 do art. 4º do Regulamento de Atribuição do Título Académico de Agregado da Universidade do Algarve publicado em anexo ao Despacho n.º 2251/2020 ao abrigo do nº 2 do artº 4º do Decreto-Lei nº 239/2007, de 19 de junho. O presente relatório destina-se à obtenção do título académico de Agregado, segundo o Artigo 5.º do Decreto-Lei n.º 239/2007 de 19 de junho, incluindo o programa, os objetivos, os conteúdos e os métodos de ensino da unidade curricular (UC) “Tecnologia Pós-colheita”. A UC “Tecnologia Pós-colheita” é obrigatória no 3º ano, 2º semestre, da Licenciatura em Agronomia (1º ciclo) da Universidade do Algarve. Esta UC tem 6 ECTS (European Credit Transfer and Accumulation System) correspondentes a 28 horas de aulas teóricas, 28 horas de aulas práticas laboratoriais e 100 horas de trabalho autónomo, pertencendo à Área Científica de Ciências Agrárias da Faculdade de Ciências e Tecnologia da Universidade do Algarve. O código CNAEF (Classificação Nacional de Áreas de Educação e Formação) aplicado é o 621 (Produção Agrícola e Animal) e o seu contributo para os Objetivos de Desenvolvimento Sustentável (ODS) correspondem aos números 2-Erradicar a fome, 12-Produção e consumos sustentáveis e 13-Ação climática.
- Living on the shores of the Alboran sea. The neolithic on the coast of Málaga (Spain) a multiproxy approachPublication . Simón-Vallejo, María D.; Lozano-Francisco, M. Carmen; Riquelme-Cantal, José A.; Macías-Tejada, Sara; Camuera, Jon; Uzquiano Ollero, Paloma; Sánchez Marco, Antonio; Garrido-Anguita, Juan M.; Jiménez-Espejo, Francisco; Parrilla-Giráldez, Rubén; Vera-Lozano, José A.; Vera-Peláez, José L.; Cortés-Sánchez, MiguelContext: The coast of Málaga is one of the core areas for the Neolithic in southern Iberia with the earliest occupations dating to the middle of the 8th millennium cal BP. From the outset, evidence shows a fully developed and highly diversified system of agriculture and animal husbandry. The palaeoenvironmental conditions during this period in the southern Iberian Peninsula reveal phases of aridity. Objectives: This study aims to understand how Neolithic communities adapted to these adverse environmental conditions. It also explores the role of wild resources and seasonal patterns in subsistence strategies. Methods: A multiproxy approach was applied, combining regional palaeoenvironmental data with archaeological, archaeofaunal, archaeobotanical and anthropological evidence. The analysis focuses on sites located near aquifer discharges. Results: Fully developed and highly diversified agriculture and herding practices are documented from the earliest Neolithic phases. The challenges posed by arid conditions appear to have been mitigated by settlement in areas linked to major aquifer outlets and by the cultivation of drought-resistant cereals. Multiple lines of evidence suggest a seasonal pattern of occupation, primarily from late autumn to early summer, when marine resources were likely exploited. Neolithic groups may have engaged in regular hunting and gathering activities or maintained interactions with local Epipalaeolithic–Mesolithic populations. Agricultural and pastoral management emerge as key factors for evaluating the contribution of wild resources to their subsistence. Conclusions: The integration of environmental, archaeological and biological records provides a more holistic perspective and better understanding of Neolithic economy and society along the Málaga coast between c. 7.6th—5th millennium cal BP, offering insights into subsistence strategies under arid conditions in a coastal setting.
- Tailored bacterial co-cultures improve Tisochrysis lutea growth and nutrient profiles under xenic conditions: a new pathway to improve microalgal productionPublication . Santos, Tamara; da Fonseca Simões, Beatriz; Rossetto, Veronica; Pereira, Hugo; Maia, Inês Beatriz; Oliveira, Marta; Esteves Lopes Navalho, João Carlos; Engelen, Aschwin; Varela, JoãoThe marine haptophyte Tisochrysis lutea is a valuable source of high-value compounds, including polyunsaturated fatty acids like docosahexaenoic acid, and pigments (e.g., fucoxanthin). However, high production costs and variability remain major challenges for its large-scale application in aquaculture, pharmaceuticals, and biotechnology industries. Therefore, strategies to enhance biomass production and quality are actively explored. In natural environments, T. lutea establishes mutualistic interactions with bacteria to obtain essential nutrients such as vitamin B12, yet the role of bacteria in industrial cultures remains poorly understood. In this study, 145 bacterial strains were isolated and taxonomically identified from industrial T. lutea cultures, with members of the class Gammaproteobacteria and Actinomycetia being the most prevalent. Forty isolates were screened individually in co-culture with T. lutea revealing strain-specific effects on growth and biochemical composition. Seven beneficial strains were used to design 21 tailored bacterial blends. Several consortia enhanced biomass production (up to 74 %) and increased key bioactive compounds, particularly methylcobalamin (up to 300 %). These findings demonstrate the potential of tailored bacterial consortia to enhance T. lutea productivity and nutritional quality under production-relevant xenic conditions, enabling strategic microbiome modulation for specific industrial goals.
- Unravelling the chemical nature of the spawning-inducing pheromone (SIP) in the pacific oyster (Magallana gigas)Publication . Rato, Ana Cláudia Nunes; sandra, Joaquim; Matias, Domitília; Hubbard, PeterIn external fertilisation, spawning synchrony is often mediated by pheromones. However, their chemical nature is rarely well-established; this is particularly true for bivalves. This study used an electrophysiological technique—the electro-osphradiogram (EOsG)—to investigate the spawning-inducing pheromone (SIP) in the Pacific oyster (Magallana gigas), a species of economic and environmental relevance. Recording the electrophysiological response of the osphradium to conspecific sperm milt and its fractions, we show that the SIP is multicomponent, likely proteinaceous—with at least one component linked to the spermatozoa and the other components in free solution—and all resistant to freezing. At least three active components are involved: one of about 35 kDa, one between 3 and 10 kDa and one of less than 3 kDa. All three, alone, evoke responses from the osphradium, but all three must probably be present to evoke the full biological response—gamete release— in the receiver. All three are likely polar; none were retained by a range of solid-phase extraction cartridges. We suggest that the EOsG will be useful to isolate and identify the individual components of the oyster SIP. Successful identification of the SIP will represent an important step towards more sustainable and efficient bivalve hatchery practices.