Percorrer por autor "Pimentel, F.B."
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- Dietary supplements for cognitive function improvement: control of amino acid levelsPublication . Pimentel, F.B.; Botelho, J.; Costa, C.G.; Costa, A.S.G.; Ferreira da Vinha, Ana; Alves, R.C.; Oliveira, M.B.P.P.Neurodegenerative diseases affect cognitive functions by progressive and irreversible destruction of brain cells. The medical treatment is often complemented with dietary supplementation in order to suppress the lack of nutrients that is common in these situations. Some amino acids are especially important to prevent or delay the progress of such diseases. For example, tryptophan, tyrosine, and phenylalanine are biosynthetic precursors of important neurotransmitters (serotonin, dopamine, and norepinephrine), and glutamate and aspartate are themselves brain neurotransmitters. The aim of this study was to evaluate the amino acids composition of commercial dietary supplements (n=8) for improvement of memory and cognitive function.
- Elephant foot yam (Amorphophallus paeoniifolius (Dennst.) Nicolson): the effect of processing on the amino acid profilePublication . Costa, A.S.G.; Pimentel, F.B.; Fernandes, T.J.R.; Ruas, A.C.; Ferreira da Vinha, Ana; Alves, R.C.; Oliveira, M.B.P.P.The elephant foot yam (Amorphophallus paeoniifolius (Dennst.) Nicolson) is a tropical plant from Southeast Asia, where it is cultivated, but it also grows wild in the Philippines, Malaysia, Indonesia and other countries in the region, including East Timor. Besides being used as food, it is still used in popular medicine to treat some health problems, such as arthralgia, elephantiasis, inflammation, hemorrhoids, vomiting, asthma, dyspepsia, flatulence, colic, constipation, among others. The aim of this study was to characterize the amino acids composition of elephant foot yam from Timor. Fresh and boiled tubers were also compared to evaluate the effect of processing on the amino acids profile.