Browsing by Author "Ferreira, Margarida A."
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- Avaliação do grau de oxidação de azeites varietais: influência da Bactrocera oleae (Gmelin) e do tempo de armazenamento da azeitona.Publication . Pereira, J.A.; Ferreira, Margarida A.; Oliveira, Beatriz
- Azeites varietais das Cv. Cobrançosa, Madural e Verdeal: influência do tempo de armazenamento da azeitona no teor de tocoferóis do azeitePublication . Pereira, J.A.; Casal, Susana; Oliveira, Beatriz; Ferreira, Margarida A.
- Detecção de adulterações em produtos alimentares contendo leite e/ou proteínas lácteasPublication . Veloso, Ana C.A.; Teixeira, Natércia; Ferreira, Isabel M.P.L.V.O.; Ferreira, Margarida A.A critical review of the most relevant analytical methodologies for quality and authenticity control of dairy products and foods containing milk proteins is presented. Chromatographic, electrophoretic and immunological methods are used for: detection of cow's milk in ewe and goat milks, detection of whey added to milk, detection of caseins and/or whey proteins in non-lactic foods and study compounds resulting from milk proteins degradation. Techniques based on polimerase chain reaction are also suitable for detection of cow's milk on cheeses of ewe and goat milks.
- Olive oil quality versus strorage of varietal olives (Fatty acid profile, acidity and peroxide value).Publication . Pereira, J.A.; Oliveira, Beatriz; Casal, Susana; Ferreira, Margarida A.