14 documents found, page 1 of 2
Application of microalgae as natural colorant for pastry and confectionary prod...
Pereira, Tatiana; Barroso, Sonia; Pinto, Filipa R.; Silva, Frederica; Teixeira, Paula; Mendes, Susana; Gil, Maria M.Modern consumers demand the replacement of synthetic colorants with natural alternatives. Microalgae can serve as an alternative source for these colorants since they hold significant amounts of pigments. This study aimed to evaluate the potential of using microalgae biomass and extracts as natural colorants for pastry and confectionary products. The application of different biomass and levels of Chlorella vulg...
Seasonal study of the nutritional composition of unexploited and low commercial...
Duarte, Ana M.; Silva, Frederica; Mendes, Susana; Pinto, Filipa R.; Barroso, Sonia; Silva, Elisabete; Neves, Ana; Sequeira, VeraTarget species diversification is essential for fisheries sustainability and fish market revitalization. Fish discards are a widely recognized problem resulting from fisheries worldwide, and are of major concern for all sector players, from administrations, to fishermen, and scientists. However, non-target species are seldom studied, and information on nutritional profiles and seasonal changes in nutritional pr...
Annual variations in the mineral element content of five fish species from the ...
Pinto, Filipa R.; Duarte, Ana M.; Silva, Frederica; Barroso, Sonia; Mendes, Susana; Pinto, Edgar; Almeida, Agostinho; Sequeira, Vera; Vieira, Ana RitaThe most consumed fish species in Portugal do not correspond to the most caught fish species on the Portuguese coast. From the point of view of ocean sustainability and economics, it is important to study unexploited or underexploited fish species that have the potential to be introduced into the food market. This potential can be reflected by their nutritional value, where mineral elements are often overlooked...
Donor functionalized iron(II) N-Heterocyclic carbene complexes in transfer hydr...
Lopes, Rita; Raya-Baron, Alvaro; Robalo, M. Paula; S. Vinagreiro, Carolina; Barroso, Sonia; Romão, Maria João; Fernandez, Ignacio; Pereira, Mariette M.Two piano-stool iron(II) complexes bearing N-heterocyclic carbene ligands outfitted with acetamide- and amine-pendant arms [Cp*Fe(NHC(R))(CO)I] {Cp* = eta(5)-tetramethylcyclopentadienyl; R = CH2CONEt2(3), (CH2)(2)NEt2(4)}, have been prepared and fully characterized. Their catalytic activity in transfer hydrogenation (TH) of ketones usingiPrOH as a hydrogen source and catalytic amounts of base (LiOtBu) has been ...
Seasonal evaluation of Pholorotannin-Enriched extracts from brown macroalgae Fu...
Almeida, Belén; Barroso, Sonia; Ferreira, Ana S. D.; Adão, Pedro; Mendes, Susana; Gil, Maria M.Fucus spiralis that was collected in the four seasons was submitted to an extraction with ethanol:water (crude extracts Et80), followed by a liquid–liquid fractionation with organic solvents (fraction He from n-hexane; aqueous fractions AQ1, AQ2, AQ3 and AQ4; ethyl acetate fraction EA), with the aim of obtaining phlorotannin-enriched extracts. All the extracts (Et80, He, AQ1, AQ2, AQ3, AQ4 and EA) that were obt...
Study of the seasonal variations of the fatty acid profiles of selected macroalgae
Pereira, Tatiana; Horta, André; Barroso, Sonia; Mendes, Susana; Gil, Maria M.Due to the high consumption of fat-rich processed foods, efforts are being done to reduce their saturated fat (SFA) contents and replace it with polyunsaturated fatty acids (PUFA), creating a necessity to find alternative PUFA sources. Macroalgae, being a promising natural source of healthy food, may be such an alternative. The fatty acid (FA) profile of Fucus spiralis, Bifurcaria bifurcata, Ulva lactuca, and S...
Adding value to bycatch fish species captured in the Portuguese coast—developme...
Silva, Frederica; Duarte, Ana M.; Mendes, Susana; Borges, Patrícia; Magalhães, Elisabete; Pinto, Filipa R.; Barroso, Sonia; Neves, Ana; Sequeira, VeraWe live in a world of limited biological resources and ecosystems, which are essential to feed people. Consequently, diversifying target species and considering full exploitation are essential for fishery sustainability. The present study focuses on the valorization of three low commercial value fish species (blue jack mackerel, Trachurus picturatus; black seabream, Spondyliosoma cantharus; and piper gurnard, T...
Stability, kinetics, and application study of phycobiliprotein pigments extract...
Pereira, Tatiana; Barroso, Sonia; Mendes, Susana; Gil, Maria M.Phycobiliprotein (PBP) pigments were extracted from red algae Gracilaria gracilis through maceration in phosphate buffer using previously optimized conditions. The stability of PBPs in the extracts was assessed by monitoring the extracts at different pHs and temperatures for 10 days. Since phycoerythrin (PE) is the main PBP present in G. gracilis, PE content was spectroscopically determined and used as a respon...
Phytopharmacological strategies in the management of type 2 diabetes Mellitus
Duarte, Ana M.; Guarino, Maria P.; Barroso, Sonia; Gil, Maria MType 2 Diabetes Mellitus (T2DM) is a chronic disease which corresponds to 90% of the worldwide cases of diabetes, mainly due to epigenetic factors such as unhealthy lifestyles. First line therapeutic approaches are based on lifestyle changes, most of the time complemented with medication mostly associated with several side e ects and high costs. As a result, the scientific community is constantly working for th...
CATA vs. FCP for a rapid descriptive analysis in sensory characterization of fish
Silva, Frederica; Duarte, Ana M.; Mendes, Susana; Pinto, Filipa R.; Barroso, Sonia; Ganhão, Rui; Gil, Maria M.Storing non-marketable fish aboard fishing vessels takes up valuable storage space and, consequently, it is usually discarded. Therefore, the strategy to minimize the amount of discarded fish and boost the fishing economy should entail measures to turn unexploited species into marketable fish. The use of sensory descriptive analysis is usually the first step in the characterization of foods and assess their bas...