12 documents found, page 1 of 2
Preservation of fresh-cut Rocha Pear using Codium tomentosum extract
Augusto, Ana; Miranda, Andreia; Crespo, Daniel; Campos, Maria J.; Raimundo, Délio; Pedrosa, Rui; Mitchell, Geoffrey; Niranjan, KeshavanRocha is a Portuguese pear cultivar with high economic importance in the Portuguese Western Region. Degradative processes following its manipulation can quickly lead to product rejection, especially when sold as a freshcut product. The efficacy of a marine-based edible coating to inhibit superficial browning development in freshcut Rocha pear slices was investigated over a storage period of 15 days. The aqueous...
A pilot plant scale testing of the application of seaweed-based natural coating...
Augusto, Ana; Miranda, Andreia; Costa, Leonor; Pinheiro, Joaquina; Campos, Maria J.; Raimundo, Délio; Pedrosa, Rui; Mitchell, GeoffreyCodium tomentosum hydroethanolic extract was obtained using a pilot solid–liquid extractor to validate the anti-browning functionality of the extract under industrial conditions. Fresh-cut apple slices were coated by immersion in: (1) a seaweed extract solution (0.5% w/v) and (2) a commercial coating, and the two sets of samples were compared with a control (immersion in water). Packaged samples were stored, un...
A pilot plant scale testing of the application of seaweed-based natural coating...
Augusto, Ana; Miranda, Andreia; Costa, Leonor; Pinheiro, Joaquina; Campos, Maria J.; Raimundo, Délio; Pedrosa, Rui; Mitchell, GeoffreyCodium tomentosum hydroethanolic extract was obtained using a pilot solid–liquid extractor to validate the anti-browning functionality of the extract under industrial conditions. Fresh-cut apple slices were coated by immersion in: (1) a seaweed extract solution (0.5% w/v) and (2) a commercial coating, and the two sets of samples were compared with a control (immersion in water). Packaged samples were stored, un...
Preservation of fresh-cut Rocha Pear using Codium tomentosum extract
Augusto, Ana; Miranda, Andreia; Crespo, Daniel; Campos, Maria J.; Raimundo, Délio; Pedrosa, Rui; Mitchell, Geoffrey; Niranjan, KeshavanRocha is a Portuguese pear cultivar with high economic importance in the Portuguese Western Region. Degradative processes following its manipulation can quickly lead to product rejection, especially when sold as a freshcut product. The efficacy of a marine-based edible coating to inhibit superficial browning development in freshcut Rocha pear slices was investigated over a storage period of 15 days. The aqueous...
Real-time PCR protocol for detection and quantification of three pathogenic mem...
Costa, Cátia; Ferreira, Guilherme D.; Simões, Marco; Silva, Joana L.; Campos, Maria J.Vibriosis, an often-fatal disease induced by pathogenic members of the Vibrionaceae family, causes severe economic losses in aquacultures. To mitigate/avoid vibriosis outbursts, it is vital to detect and quantify these pathogens as early as possible. However, standard microbiological methods are time-consuming and often underestimate cell counts, which calls for the development of valid alternatives. In this st...
Insights into the restoration of tributyltin contaminated environments using ma...
Monteiro, Hugo R.; Moutinho, Ariana; Campos, Maria J.; Lemos, Marco F.L.; Esteves, Ana C.Tributyltin (TBT) is an organotin chemical mainly used as biocide in marine antifouling paints. Despite the restrictions and prohibitions on its use, TBT is still an environmental problem due to its extensive application and subsequent release into the environment, being regarded as one of the most toxic chemicals released into the marine ecosystems. Microorganisms inhabiting impacted sites are crucial for thei...
Physicochemical and nutritional profile of leaves, flowers, and fruits of the e...
Neves, Marta; Antunes, Madalena; Fernandes, Wilson; Azevedo, Zélia M.; Freitas, Victor; Rocha, João M.; Tecelão, Carla; Campos, Maria J.Leaves, flowers and fruits from the edible halophyte chorão-da-praia (Carpobrotus edulis), harvested in the Portuguese western sea shores, were characterized regarding their proximate composition, fatty acid profile, pigments, phenolic compounds, antioxidant and antimicrobial activities. Fruits had the highest amount of carbohydrates (70.2 ± 1.6%) and the lowest of protein (4.67 ± 0.22%) and ash (22.0 ± 1.0%) c...
Occurrence of tet(O/M/O) mosaic gene in tetracycline-resistant Campylobacter
Hormeño, Lorena; Campos, Maria J.; Vadillo, Santiago; Quesada, AlbertoCampylobacter is one of the most important microorganisms responsible for foodborne diseases in the EU. In this study, we investigated resistance to tetracycline in 139 Campylobacter jejuni and Campylobacter coli samples isolated from human clinical cases. From these, 110 were resistant to tetracycline, with MIC (minimal inhibitory concentration) varying in a range of 1 to >512 ug/mL, and 109 (78.4%) carried te...
Morphology and Thermal Behaviour of New Mycelium-Based Composites with Differen...
Alves, Rafael M. E.; Alves, M.L.; Campos, Maria J.The need for new green and sustainable materials has been fostering the development, research and introduction of biodegradable materials from natural and renewable sources. Commercially available biodegradable plastics, while minimizing their environmental impact and exhibiting a set of properties that enable the obtainment of industrial components, usually require complex processing methods, are costly and ha...
Influence of Codium tomentosum Extract in the Properties of Alginate and Chitos...
Augusto, Ana; Dias, Juliana R.; Campos, Maria J.; Alves, Nuno; Pedrosa, Rui; Silva, SusanaThe growing search for natural alternatives to synthetic food packaging materials and additives has increased, and seaweed extracts’ bioactivity has made them suitable candidates for incorporation in novel edible films. This study aims to investigate the effect of Codium tomentosum seaweed extract (SE) incorporation in alginate and chitosan edible films. Alginate- and chitosan-based films with and without the i...