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Optimized extraction protocols for bioactive antioxidants from commercial seawe...
Santos, Francisca; Soares, Cristina; Morais, Stephanie L.; Neves, Cátia; Grosso, Clara; Ramalhosa, Maria João; Vieira, Mónica; Delerue-Matos, CristinaThis study aimed to optimize the extraction conditions for a valuable source of antioxidants: seaweed. Therefore, ten seaweed samples were subjected to a solid–liquid extraction (SLE), where the extraction conditions (biomass (g): solvent (mL) ratio, temperature, and time) were optimized using response surface methodology (RSM). The seaweeds were also subjected to subcritical water extraction (SWE) (140 and 190...
Assessment of the antioxidant capacity of commercial coffee using conventional ...
Morais, Stephanie L.; Rede, Diana; Ramalhosa, Maria João; Correia, Manuela; Santos, Marlene; Delerue-Matos, Cristina; Moreira, Manuela M.As one of the most popular beverages in the world, coffee is a rich source of non-enzymatic bioactive compounds with antioxidant capacity. In this study, twelve commercial coffee beverages found in local Portuguese markets were assessed to determine their total phenolic and flavonoid contents, as well as their antioxidant capacity, by conventional optical procedures, namely, ferric reducing antioxidant power an...
Seasonal and Spatial Comparison of Polycyclic Aromatic Hydrocarbons Among Decap...
Maia, Maria Luz; Paíga, Paula; Ramalhosa, Maria João; Delerue-Matos, Cristina; Calhau, Conceição; Domingues, ValentinaPolycyclic aromatic hydrocarbons (PAHs) are ubiquitous global pollutants that are lipophilic, bioaccumulative and can be both endocrine disruptors and carcinogens. In this study, we measured 18 PAHs among decapod shrimp samples (Palaemon spp.) collected during the spring and autumn from multiple locations along the Portuguese coastal, including local markets and aquaculture farms. ΣPAH concentrations in samples...
Use of agricultural wastes to design natural products for the prevention of car...
Costa, Mariana; Grosso, Clara; Ramalhosa, Maria João; Ferraz, Ricardo; Soares, CristinaCardiovascular diseases (CVDs), or risk factors for CVD, such as diabetes, hypertension and hypercholesterolemia, are the leading cause of death worldwide. Therefore, the use of agricultural by-products as a source of functional ingredients, particularly those from crop plants, has received significant interest. For example, the banana (Musa spp.) is a common food crop worldwide and is the primary production on...
Honey as an Adjuvant in the Treatment of COVID-19 Infection: A Review
Soares, Sónia; Bornet, Mélina; Grosso, Clara; Ramalhosa, Maria João; Gouvinhas, Irene; Garcia, Juliana; Rodrigues, Francisca; Delerue-Matos, CristinaSince ancestor times, honey has been used to promote human health due to its medicinal, and nutritious properties, mainly due to bioactive compounds present, such as phenolic compounds. The emergence of COVID-19, caused by the SARS-CoV-2 virus, led to the pursuit of solutions for the treatment of symptoms and/or disease. Honey has proven to be effective against viral infections, principally due to its potential...
Polycyclic aromatic hydrocarbons in wild and farmed whitemouth croaker and meag...
Oliveira, Marta; De Gasperi Portella, Carolina [UNESP]; Ramalhosa, Maria João; Delerue-Matos, Cristina; Sant'Ana, L. S. [UNESP]; Morais, SimoneMade available in DSpace on 2021-06-25T10:35:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-01; Fundação para a Ciência e a Tecnologia; This work assessed the concentrations of 18 polycyclic aromatic hydrocarbons (PAHs) in edible tissues of whitemouth croaker (Micropogonias furnieri) and meagre (Argyrosomus regius) captured in different Atlantic Ocean fishing areas and available to Brazilian and P...
Bioactive lipids of seaweeds from the Portuguese north coast: health benefits v...
Soares, Cristina; Sousa, Sara; Machado, Susana; Vieira, Elsa; Carvalho, Ana P.; Ramalhosa, Maria João; Morais, Simone; Correia, ManuelaThe total lipid content and lipidic profile of seaweeds harvested in the North Coast and purchased in Portugal were determined in this paper. The amount of total lipids in the different species of seaweeds varied between 0.7 ± 0.1% (Chondrus crispus) and 3.8 ± 0.6% (Ulva spp.). Regarding the fatty acid content, polyunsaturated fatty acids (PUFA) ranged between 0–35%, with Ulva spp. presenting the highest amount...
Bioactive Lipids of Seaweeds from the Portuguese North Coast: Health Benefits v...
Soares, Cristina; Sousa, Sara; Machado, Susana; Vieira, Elsa; Carvalho, Ana P.; Ramalhosa, Maria João; Morais, Simone; Correia, Manuela; Oliva-Teles, MTThe total lipid content and lipidic profile of seaweeds harvested in the North Coast and purchased in Portugal were determined in this paper. The amount of total lipids in the different species of seaweeds varied between 0.7 ± 0.1% (Chondrus crispus) and 3.8 ± 0.6% (Ulva spp.). Regarding the fatty acid content, polyunsaturated fatty acids (PUFA) ranged between 0–35%, with Ulva spp. presenting the highest amount...
Chemical Characterization and In Vitro Bioactivity of Apple Bark Extracts Obtai...
Švarc-Gajić, Jaroslava; Cerdà, Víctor; Delerue-Matos, Cristina; Mašković, Pavle; Clavijo, Sabrina; Suarez, Ruth; Cvetanović, AleksandraRecently, the value of wood residues has received increasing attention due to the presence of pharmacologically active compounds. In the present study, apple bark was treated with subcritical water (SWE) with the aim of bioactivity determination and chemical analysis by GC–MS applying two different sample preparation protocols and by HPLC. Extracts were screened for their total antioxidant capacity by means of ...
Development of New Canned Chub Mackerel Products Incorporating Edible Seaweeds—...
Vieira, Elsa F.; Soares, Cristina; Machado, Susana; Oliva-Teles, MT; Correia, Manuela; Ramalhosa, Maria João; Carvalho, A.; Domingues, ValentinaThis study aimed to develop new canned chub mackerel products incorporating edible seaweeds (Ascophyllum nodosum, Fucus spiralis, Saccorhiza polyschides, Chondrus crispus, Porphyra sp. and Ulva sp.) harvested in the Portuguese North-Central coast, with simultaneous sensory improvement and minerals enrichment. Two processes were compared, namely the addition of seaweeds in i) the canning step and ii) in the brin...