Ciências da Vida / Life Sciences
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Browsing Ciências da Vida / Life Sciences by Field of Science and Technology (FOS) "Ciências Agrárias"
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- Adesão às escolhas alimentares saudáveis: intervenção dos fatores psicológicos modificáveisPublication . Moura, Ana Pinto de; Moura, Ana Pinto deO presente trabalho visa debater, do ponto de vista do consumidor, os principais fatores psicológicos modificáveis que influenciam as escolhas alimentares individuais a favor de uma alimentação saudável, bem como os obstáculos inerentes à sua adesão, particularizando para a realidade portuguesa.
- Avaliação da aceitabilidade do uso da lula de babaneira na alimentação escolar em São ToméPublication . António, Dilúvia Boa Morte Viegas d' Abreu; Mendonça, Álvaro Luís Pegado de; António, Meyer Madre de Deus Do Rosário António; Oliveira, Maria Rita Marques de; Moura, Ana Pinto deINTRODUÇÃO: O enriquecimento da alimentação escolar deve ser acompanhado da utilização de produtos agrícolas locais e de baixo custo e que sejam bem aceitos pelas crianças. Em São Tomé e Príncipe, a banana é um dos alimentos mais produzidos, consumidos, e do seu cultivo, existem subprodutos como a lula/flor de bananeira com potencial uso na alimentação. Segundo a Lei n.º 4/2012, Lei do Programa Nacional de Alimentação e Saúde Escolar (PNASE), para que sejam introduzidos novos ingredientes nos menus escolares, devem ser objeto de testes de aceitabilidade. OBJETIVOS: O objectivo do presente trabalho, foi avaliar a aceitabilidade da introdução e o aproveitamento de lula de bananeira na limentação escolar em São Tomé e Príncipe. METODOLOGIA: foram utilizados os métodos de avaliação sensorial, nomeadamente o teste de escala hedónica facial e duo trio, aonde participaram 106 provadores, sendo o primeiro teste com 92 alunos do ensino básico (6-14 anos) e segundo com 14 mestrandos treinados do Instituto Superior Politécnico de São Tomé e Príncipe. As receitas avaliadas foram aquelas já utilizadas na alimentação escolar sendo, molho de peixe com arroz, salada de feijão e sopa de hortaliças preparadas com as variedades de lula de banana prata e maçã. RESULTADOS: Os resultados revelaram uma aceitabilidade acima do limite mínimo estabelecido pela Lei do Programa Nacional de Alimentação e Saúde do Escolar (PNASE) para inclusão de novas receitas, 85% (molho de peixe com arroz: 88%; salada de feijão: 87%; e sopa de hortaliças: 87%). No teste duo trio, não foram observadas diferenças significativas de sabor entre as variedades de lula de bananeira utilizadas (maçã e prata) (Tabela 1). CONCLUSÕES: A inclusão da lula/flor de bananeira nos menus escolares não é apenas uma alternativa economicamente viável, mas também culturalmente respeitosa e com uma aceitabilidade satisfatória dos alunos, representando uma alternativa promissora para enriquecer os menus escolares.
- Circular economy in the agri-food sector: Insights into Portuguese companies’ practicesPublication . Scandurra, Federica; Salomone, Roberta; Caeiro, Sandra; Moura, Ana Pinto deRelevant cultural and financial factors hamper circularity in Portuguese agri-food sector companies. To capture so, an empirical analysis of circular practices in agri-food companies was carried out. Being the agri-food sector central to the Portuguese economy and the numerous circular economy initiatives in the Country, the study aims to comprehend how circularity is achieved from an environmental, social, and financial perspective in Portuguese companies of the sector. Therefore, a survey of a selected sample of companies identified 9 examples of organisations involved in circularity to interview. Results evidence: (I) strong cultural and financial barriers in implementation and evaluation; (ii) generation of social value through community-centred initiatives and collaborations with local companies; (iii) urgency to valorise and communicate financial impact to conquer new funding opportunities. The analysis contributed with new knowledge on the social value-creating capacity of circularity and the impact on companies’ financial performance in the agri-food sector, providing interesting future insights into academia and policymaking.
- Evaluation of the trade-off between variety, processing, and low-GI claim in ready-to-eat ricePublication . Cabral, Diva; Fonseca, Susana C.; Rocha, C.; Moura, Ana Pinto de; Oliveira, J. C.; Cunha, Luís Miguel; Moura, Ana Pinto deAn increasing number of consumers demand healthier, more convenient, and sustainable food products, including rice, a staple worldwide. Food manufacturers have responded to this trend by considering food’s intrinsic and extrinsic aspects. This study evaluated the importance of variety, processing, and claims on willingness to try ready-to-eat rice (RTE-rice). It also analyses the influence of consumer attitudes on the importance of attributes and willingness to try. The results showed that processing significantly influenced willingness to try RTE-rice, revealing consumers’ greater preference for whole grain than milled rice with added bran. Claims had the least relevant importance. However, low glycaemic index had a positive impact, indicating its potential to influence consumer purchasing attitudes and promote healthier rice consumption. Additionally, three groups were created based on attitudinal factors. Naturalness-oriented and convenienceoriented groups were more likely to try RTE-rice. However, the reasons that motivate them may be different; this latter could be the ease of the service offered, while for the group focused on naturalness, they may have perceived through the ingredients and claimed that the product, despite being convenient, can bring benefits, thus perceiving them as natural.
- Food fraud conceptualization: an exploratory study with Portuguese consumersPublication . Costa, Maria João; Sousa, Isabel; Moura, Ana Pinto de; Teixeira, José A.; Cunha, Luís MiguelFood fraud refers to deceptive practices conducted for economic gain, and incidents of such fraud are often reported in the media and scientific literature. However, little is known about how European consumers perceive food fraud. To address this gap, a study explored Portuguese consumers' knowledge and perceptions of food fraud using qualitative methods such as free word association and semi‐structured interviews. For this research, 340 participants were recruited, providing 911 valid words, classified into categories, major categories, and dimensions. Differences between consumers' previous exposure to food fraud and sociodemographic characteristics were explored. Additionally, other thirty‐six participants were selected and interviewed, following a semi‐structured guide. Interviews were transcribed, coded, and analyzed using a thematic analysis procedure. The results suggest that Portuguese consumers view food fraud as a morally reprehensible deception and are aware of its causes and impacts. However, not all consumers know the different forms of food fraud or the types of products vulnerable to fraud. Among the most repeated words were “deception”, “expiration date”, and “falsification”. Despite this food fraud awareness, most consumers believed they were not exposed to food fraud and stated that they do not conduct daily practices to reduce exposure to it. Following the chi‐square and Mann‐Whitney tests, significant differences (p ≤ 0.05) were identified between participants exposed and not exposed to food fraud. The study also found that consumers with higher education and self‐reported exposure to food fraud had a better understanding of the issue. This study provides insights for quantitative research on consumer perceptions and beliefs about food fraud to explore further vulnerable food categories and types of food fraud in real‐world scenarios.
- A food product development project with humanitarian character: an exploratory studyPublication . Lucca, G. L.; Fonseca, S. Caldas; Moura, Ana Pinto deVulnerable livelihood groups, such as the Fulanis in Guinea-Bissau, are affected by the consequences of inequality, as they lack access to healthy food, a healthy environment and adequate primary health care. Coordination between sectors can be key to building resilient food and health systems by integrating and scaling up preventive and emergency nutrition services, especially in the context of malnutrition. In 2021, a cashew-based food product was launched in Portugal in partnership with an NGO and a Portuguese food retailer. This study aims to explore the development and marketing of the product with humanitarian objectives, assessing its impact on the different stakeholders of the project. A mixed methodology was applied, combining the evaluation of consumer behavior, assessed through self-reported electronic questionnaires and in-depth interviews with the actors involved in the project. According to the retailer group stakeholders, a great opportunity for the future lies in developing new products with a humanitarian character. The results show that consumers are indeed interested in buying a product associated with a humanitarian cause, and that the product “100% Cashew Nut Butter” has a favorable consumer acceptance in terms of sensory attributes. The long-term nature of the project and the financial return were cited as strengths by all NGO stakeholders involved, but all stakeholders agreed that innovation was needed to sustain donations. Thus, this may be a cyclical process: businesses can create demand through product development, while management and consumers, in turn, drive demand. These findings can be used to improve the design of future projects that might use this as an example.
- Pós-graduação a distância em sistemas alimentares sustentáveis na Comunidade dos Países de Língua Portuguesa: relato de experiência na disciplina “Árvores de Problemas e de Soluções da Malnutrição"Publication . Pacheco, L. F. G.; Moura, Ana Pinto de; Oliveira, M. R.Entender e exercitar o processo de construção de árvores de problemas e de soluções em processos formativos no âmbito da Comunidade dos Países de Língua Portuguesa (CPLP) e em cenário virtual, tem sido uma experiência desafiadora e enriquecedora pelas possibilidades de trocas e de construção coletiva que tem proporcionado. Este estudo trata-se de um relato de experiência de uma disciplina em curso de pós-graduação a distância desenvolvido com países da CPLP, que visou realizar o planejamento de oficina participativa e a construção de árvores de problemas e de soluções para a má-nutrição. Tem abordagem qualitativa, é descritivo e metodológico no campo da governança das políticas públicas. Referencia-se teoricamente em Paulo Freire na perspectiva da participação social e da Educação Popular. São apresentadas as atividades desenvolvidas, com base em sequência didática, bem como as trocas, discussões e adaptações desenvolvidas ao longo da disciplina. Este relato evidenciou que o desenvolvimento de habilidades para o exercício de metodologias participativas em processos de desenvolvimento comunitários pode ser efetivo em cenários de aprendizagem virtual. Ressaltou também que a diversidade de perspectivas no contexto de propostas para solução de problemas amplifica as possibilidades de respostas e nos faz repensar as formas de ver e estar no mundo.