resumo
The intent of the present work was to evaluate the potential of four macroalgae prevalent in Europe, namely Ulva rigida, Gracilaria sp., Fucus vesiculosus and Saccharina latissima, for application in functional foods, either in the direct form or as extracts. Accordingly, nutritional composition, the content of phytochemical antioxidants, and the inhibitory ability of key enzymes with impacts on obesity and diabetes (-glucosidase and pancreatic lipase) or on arterial pressure (angiotensin-I converting enzyme), were evaluated. Overall, protein, lipid, ash and fiber contents of the macroalgae ranged from 9-24% dw, 0.5-3.0% dw, 20-32% dw, and 37-45% dw, respectively, making them good candidates for nutritional supplementation of several foods, particularly due to their mineral and fiber contents. In addition, brown macroalgae, in particular F. vesiculosus, stood out for its superior phenolic content, which was reflected by its high antioxidant ability and inhibition towards -glucosidase activity (0.032 mg/mL of hydroacetonic extract inhibited 50% of the enzyme activity).
palavras-chave
PANCREATIC LIPASE ACTIVITY; TROPICAL RED SEAWEED; CHEMICAL-COMPOSITION; DIETARY FIBER; PHYSICOCHEMICAL PROPERTIES; SENSORY CHARACTERISTICS; NUTRITIONAL COMPOSITION; GLUCOSIDASE INHIBITION; PROTEIN HYDROLYSATE; ASCOPHYLLUM-NODOSUM
categoria
Biochemistry & Molecular Biology; Chemistry
autores
Neto, RT; Marcal, C; Queiros, AS; Abreu, H; Silva, AMS; Cardoso, SM
nossos autores
Rodrigo de Sousa Trêpa Alves Neto
Estudante de doutoramentoagradecimentos
This research was funded by the R&D Co-promotion project POCI-01-0247-FEDER-003419, SHARP-Seaweed for Healthier Traditional Products, co-financed by the European Regional Development Fund through the Competitive and Internationalization Thematic Operational Program under the Portugal 2020 Program; Science and Technology Foundation/Ministry of Education and Science (FCT/MEC) funded the Organic Chemistry, Natural Products and Food Stuffs Research Unit (QOPNA) research Unit (FCT UID/QUI/00062/2013), through national funds and, where applicable, co-financed by the European Regional Development Fund (FEDER), within the Portugal 2020.