The effects of increasing temperature and dietary lipid level on the body composition, growth performance, and freshness profile of the European seabass (Dicentrarchus labrax) were evaluated through a fish trial lasting 56 days. Findings demonstrated that fish reared at 24 °C presented a lower lipid level and a higher daily growth index than those reared at 20 °C. On the other hand, the sea bass condition index...
Gulls act as intermediaries in the exchange of microorganisms between the environment and human settlements, including Salmonella spp. This study assessed the antimicrobial resistance and molecular profiles of Salmonella spp. isolates obtained from fecal samples of gulls in the city of Porto, Portugal, in 2008 and 2023 and from water samples in 2023. Antimicrobial susceptibility profiling revealed an improvemen...
Made available in DSpace on 2022-04-29T00:13:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-08-22; Interviews were conducted with scientific researchers and process industries, bibliographic research and observational technical visits to collect information about the portuguese fishery sector. The relevance of this sector derives essentially from the fact that fish is a key component of food and resp...
Food fraud is still a recurrent practice throughout food supply chains. In the case of seafood, misidentification of species and products repackaging constitute the most common frauds. Therefore, the development of appropriate analytical approaches to be used against food fraud is necessary. The present study goal is to explore for the first time, the possibility to differentiate between Sparus aurata from two ...
Background: The Quality Index Method (QIM) is a widely used approach for fish sensory grading, based on a structured scaling for freshness measurements, providing information concerning the fish freshness status, as a prediction of the remaining shelf-life for specific species or products. However, its tendency to be used in an oversimplified way and other common misapplications could lead to discredit of a met...
Farmed aquatic products are among the most widely traded commodities and one of the sectors with the fastest growth in the last years. However, aquaculture is still affected by negative connotations in comparison with other agroindustry sectors. Markets, consumer preferences and concerns about food safety and sustainability are influencing the growth of the sector and are forcing the implementation of quality m...
The volatile amines trimethylamine (TMA) and dimethylamine (DMA) could be used as important spoilage indices for seafood products, assisting in the determination of the rejection period. In the present study, a systematic analytical duality-by-design (AQbD) approach was used as a powerful strategy to optimize the most important experimental parameters of headspace solid-phase microextraction (HS-SPME) and gas c...
Fish and fish-based products are easily perishable foods due to different factors, including fragile organization, abundant endo-enzymes, psychrophilic bacteria, and impact of pre-harvest operations, that contribute to reducing its value. Therefore, a timely effective method for fish freshness and shelf-life evaluation is important. In this context, this study aimed to develop a sensory scheme based on the Qual...
Made available in DSpace on 2013-08-12T18:12:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01; Made available in DSpace on 2013-09-30T17:41:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-01-01; Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:12:36Z No. of bitstreams: 0; Made available in DSpace on 2014-05-20T13:12:36Z (GMT). No. of bitstreams:...
Made available in DSpace on 2013-09-27T14:53:11Z (GMT). No. of bitstreams: 1 WOS000295115800042.pdf: 814260 bytes, checksum: 504032183f963811d8805273ec2d9740 (MD5) Previous issue date: 2011-12-01; Made available in DSpace on 2013-09-30T17:42:55Z (GMT). No. of bitstreams: 1 WOS000295115800042.pdf: 814260 bytes, checksum: 504032183f963811d8805273ec2d9740 (MD5) Previous issue date: 2011-12-01; Submitted by Vitor S...