3 resultados para Food neophobia

em SAPIENTIA - Universidade do Algarve - Portugal


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The Bohr effect, which can be most generally defined as the influence of pH on the oxygen binding affinity of proteins, is a common feature of respiratory pigments, ranging from the haemocyanins of molluscs and crustaceans to the haemoglobins of vertebrates. Its physiological role is generally seen in the facilitation of oxygen release from respiratory pigments during tissue acidosis. The magnitude of the effect can be influenced by a multitude of factors such as temperature, carbon dioxide, chloride ions, organic phosphates and the investigated pH range. Here we present data on the maximal alkaline Bohr effect in haemoglobins from a large number of species covering all vertebrate classes, obtained at physiological temperatures in the presence of 100 mM chloride ions and the absence of carbon dioxide and organic phosphates.

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The use of spices, common nowadays, was once a sign of high position, luxury and wealth. The value of food ingredients is thus determined by the time in which one lives, that is, it is a product of fashion, since they are always used in a social context. Many plants used as spices enjoyed fame and undeniable importance in the past but their reign was more or less ephemeral, as they were rejected in favour of others for food seasoning, or simply upstaged and/or used for other purposes.

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Tese de doutoramento, Ciências Biotecnológicas (Biotecnologia Alimentar), Faculdade de Ciências e Tecnologia, Universidade do Algarve, 2014