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O peixe perde frescura com muita facilidade, sendo, por esse facto, necessário um controlo rigoroso das suas condições de armazenamento. Este estudo teve como objetivos 1) contribuir para melhorar a perceção do impacto do comportamento dos consumidores na frescura dos produtos de pesca, aquando da sua aquisição; 2) validar o serviço "Peixe & Pronto", por meio da análise das temperaturas do móvel expositor de refrigeração e de amostras de peixe lá colocadas, bem como da realização de análises microbiológicas (microrganismos viáveis totais) e químicas (azoto básico volátil total) em amostras de duas espécies de peixe, mantidas por diferentes períodos no móvel de refrigeração ou no carrinho de compras; 3) validar o serviço online de entregas ao domicílio, para o transporte em rotas longas (4 a 7 horas).
Os resultados mostraram que os clientes não usufruem do serviço como é recomendado e expõem o pescado à temperatura ambiente por períodos prolongados, o que representa um risco para a qualidade e segurança do produto. Este estudo realçou a necessidade de sensibilizar os consumidores para recolherem os produtos sensíveis, como o pescado, ape-nas no final de suas compras. Nos ensaios de validação do serviço "Peixe & Pronto", apesar de em todas as amostras os critérios de qualidade se terem mantido dentro dos limites de aceitação, identificou-se uma tendência para a diminuição da qualidade do peixe mantido à temperatura ambiente, por períodos mais longos, em relação ao peixe armazenado nos móveis refrigerados.
Por último, a monitorização do transporte para rotas longas, do serviço de compras online com entrega ao domicílio, mostrou que a temperatura dos produtos frescos era sempre mantida abaixo dos 0ºC. Este estudo permitiu assim destacar a importância do serviço "Peixe & Pronto" e da compra online com entrega ao domicílio, na preservação da frescura do pescado.
Fish loses its freshness very easily; therefore, it is necessary to keep a strict control of its storage conditions. This study aimed 1) to contribute to a better understanding of the impact of consumer behaviour on the freshness of fish products during purchase; 2) to vali-date the "Peixe & Pronto" service through the analyses of the refrigerated display unit and of fish samples placed there, as well as microbiological analyses (total viable microorganisms) and chemical analyses (total volatile basic nitrogen) conducted in the samples of two fish species which were kept in the refrigerated display unit or in the shopping trolleys, for different periods of time; 3) to validate the online home delivery service for long-distance transportation (4 to 7 hours). The findings indicated that customers do not use the service as recommended and ex-pose the seafood to room temperature for extended periods of time, which poses a risk to the quality and safety of the product. This study highlighted the need of advising consumers to pick up sensitive products like fish as one of the last items during their shopping trip. In the validation trials of the "Peixe & Pronto" service, even though all samples met the quality criteria within acceptable limits, a trend towards a decrease of quality was observed in the fish kept at room temperature, for extended periods, when compared to fish stored in the refrigerated display unit. Lastly, the monitoring of transportation on long-distances revealed that the temperature of fresh products consistently remained below 0°C when using the online home delivery service. Thus, this study enabled highlighting the importance of the "Peixe & Pronto" service and of the online home delivery purchases, in preserving the freshness of fish.
Fish loses its freshness very easily; therefore, it is necessary to keep a strict control of its storage conditions. This study aimed 1) to contribute to a better understanding of the impact of consumer behaviour on the freshness of fish products during purchase; 2) to vali-date the "Peixe & Pronto" service through the analyses of the refrigerated display unit and of fish samples placed there, as well as microbiological analyses (total viable microorganisms) and chemical analyses (total volatile basic nitrogen) conducted in the samples of two fish species which were kept in the refrigerated display unit or in the shopping trolleys, for different periods of time; 3) to validate the online home delivery service for long-distance transportation (4 to 7 hours). The findings indicated that customers do not use the service as recommended and ex-pose the seafood to room temperature for extended periods of time, which poses a risk to the quality and safety of the product. This study highlighted the need of advising consumers to pick up sensitive products like fish as one of the last items during their shopping trip. In the validation trials of the "Peixe & Pronto" service, even though all samples met the quality criteria within acceptable limits, a trend towards a decrease of quality was observed in the fish kept at room temperature, for extended periods, when compared to fish stored in the refrigerated display unit. Lastly, the monitoring of transportation on long-distances revealed that the temperature of fresh products consistently remained below 0°C when using the online home delivery service. Thus, this study enabled highlighting the importance of the "Peixe & Pronto" service and of the online home delivery purchases, in preserving the freshness of fish.
Descrição
Palavras-chave
Peixe Móvel expositor refrigerado Serviço online de entregas ao domicílio Qualidade Frescura Comportamentos dos Consumidores
