5 documents found, page 1 of 1
Sequential extraction of oxindole alkaloids from Uncaria tomentosa leaves by gr...
Botelho, José Rafael S.; Gaspar, Marisa C.; Sousa, Hermínio J.C. de; Braga, Mara E.M.Uncaria tomentosa (Cat’s Claw) is a woody climbing vine known for its therapeutic effects, which have been validated in clinical trials. The leaves, often discarded in traditional uses, contain high quantities and a wide variety of oxindole alkaloids, such as rhynchophylline (Rhy), isomytraphylline (Imyt), or mitraphylline (Myt), with Myt typically being the major alkaloid found in extracts of this species. In ...
Edible hydrosoluble sachets produced with food by-products and natural additives
Jorge, Alexandre M.S.; Bento, Cristiana S.A.; Henriques, Marta H.F.; Gaspar, Marisa C.; Braga, Mara E.M.In this work, edible films were produced from orange pectin and broken rice (food by-products), combined with different natural additives, namely orange oil, zinc oxide, rice husk (RH) and calcium acetate (CA). The films obtained were fully characterized, presenting similar colour, opacity, thickness and thermal properties. Water contact angles (WCA) ranged from 55 to 85°; water vapor sorption (WVS) between 17....
Fortified chocolate mousse with powder and extract from Moringa oleifera leaves...
Gomes, Olívia J.S.; Leitão, Anabela; Gaspar, Marisa C.; Vitorino, Carla; Sousa, João J.S.; Sousa, Hermínio C. de; Braga, Mara E.M.This study focuses on the characterisation and incorporation of Moringa oleifera leaf powder (MOP) from Luanda (Angola) and its extract (MOE) in fortified chocolate mousse. Dark green (DG) leaves presented superior nutritional values compared to other leaves. DG contained a higher concentration of mineral salts (10 ± 1 mg/100 g of dry leaves), phenolic compounds (267 ± 4 mg GAE/g), vitamins (1.9 ± 0.2 mg/g of d...
Sustainable starch-based edible films with agrifood residues as potential carri...
Coimbra, Patrícia; Alarico, Susana; Empadinhas, Nuno; Braga, Mara E.M.; Gaspar, Marisa C.Edible films are promising carriers for probiotics and can be composed by agrifood residues, which are usually rich in polymers and bioactive compounds. In this work, starch-based films were enriched with three types of agrifood residues (quince, potato and orange peels) and the incorporation of the probiotic Lactobacillus rhamnosus was studied, as well as the addition of inulin as a protective prebiotic. The r...
Edible films produced from agrifood by-products and wastes
Jorge, Alexandre M.S.; Gaspar, Marisa C.; Henriques, Marta H.F.; Braga, Mara E.M.This study aims to develop edible films using agrifood by-products (pumpkin seeds, broken rice and orange pectin) and wastes (quince peel, potato peel, potato pulp, orange peel, pumpkin peel). The physicochemical characteristics of the films were investigated, including their mechanical and barrier properties. Higher amounts of plasticizer induced poorer mechanical and barrier properties in the films. The most ...