Em países em desenvolvimento, uma das formas de combate à carência de micronutrientes da população é o recurso a suplementos alimentares, comummente chamados de multimisturas, definidas como o produto obtido através da secagem, torrefação, moagem e mistura de ingredientes de origem vegetal. Neste trabalho pretendeu-se estudar a composição e adequabilidade de uma dessas multimisturas, desenvolvida numa comunidad...
A carqueja é uma espécie bastante utilizada como planta medicinal, no tratamento de doenças do aparelho digestivo e diabetes, bem como para fins culinários, no entanto, os estudos sobre caracterização de extratos desta planta são escassos. O presente trabalhos apresenta uma análise da atividade antioxidante e antimicrobiana de extratos obtidos a partir de plantas silvestres e partes aéreas de plantas em multipl...
Atividade antioxidante e antimicrobiana de extratos de plantas de Pterospartum tridentatum (L.) Willk. in vitro e silvestres.
Identificação de compostos bioativos em plantas silvestres e plantas in vitro de Pterospartum tridentatum (L.) Willk.
Post-harvest preservation of cherries using bioactive edible coatings.
Sugar composition, phenolic content and antioxidant activity of P. tridentatum aqueous extracts: micropropagated shoots vs wild plants.
The effect of encapsulating matrix on retention, protection and delivery of Oregano essential oil (EO) was studied. EO was encapsulated in rice starch porous spheres, inulin and gelatine/sucrose capsules by spray drying. Gelatine/sucrose matrix was also dried by freeze drying. Experimental designs were applied to test the effect of bonding agents and solids content for rice starch and drying temperature and sol...
The bioactivity of natural antioxidants from plant extracts is well known. Still, the effectiveness of these natural antioxidants, namely polyphenols, depends on preserving their stability, which can be increased by microencapsulation. The aim of this study was to protect natural antioxidants from the aqueous extract of Portuguese wild herb Pterospartum tridentatum by encapsulation in alginate hydrogel microbea...
This work aimed to optimize the in vitro multiplication phase of the gore (Pterospartum tridentatum (L. Wilk)).
The aerial parts of Pterospartum tridentatum, a wild growing species in Portugal used in traditional medicine and gastronomy, were harvested at different stages (vegetative phase, flowering phase and beginning of dormancy) in two locations in Portugal (Malcata and Gardunha mountains), and the respective aqueous extracts have been studied. The influence of the seasonal variation in the extraction yield, total ph...