8 documents found, page 1 of 1
Quality of bee pollen submitted to drying, pasteurization, and high-pressure pr...
Anjos, O.; Seixas, Natália; Antunes, Carlos Alberto Lopes; Campos, Maria da Graça; Paula, Vanessa Branco; Estevinho, Letícia M.Bee Pollen is a valuable and useful natural food product that can be used for different purposes, among which medical ones. This matrix is deemed a superfood because of its chemical composition, which is rich in nutrients and possesses significant bioactivities, including antioxidant and microbiological properties. Nevertheless, the storage conditions and processing methods must be optimized to maintain their p...
Special bioactivities of phenolics from Acacia dealbata L. with potential for d...
Paula, Vanessa Branco; Pedro, Soraia; Campos, Maria da Graça; Delgado, Teresa; Estevinho, Letícia M.; Anjos, O.Some diseases still need better therapeutic approaches, including the prevention of development. Natural resources are investigated with this purpose; among them, we decided to use an invasive plant as a main strategy. This will help in two ways: screening new compounds in flowers prevents the plant from causing widespread damage by controlling the dissemination and also obtains crude material for further appli...
Evaluation of FT-Raman and FTIR-ATR spectroscopy for the quality evaluation of ...
Anjos, O.; Guiné, Raquel P.F.; Santos, António J.; Paula, Vanessa Branco; Pereira, Helena; Estevinho, Letícia M.Monofloral Lavandula spp. honey is very appreciated by consumers due to its characteristic and pleas antaroma and flavor. Given the economic importance of this ype of honey, it is important to develop a rapid and nonexpensive methodology that allows certifying its quality. In this context, this study aimed to compare the applicability and accuracy of FTIR-ATR and FT-Raman techniques for the quality evaluation o...
Standard methods for pollen research
Campos, Maria da Graça; Anjos, O.; Chica, Manuel; Campoy, Pascual; Nozkova, Janka; Almaraz-Abarca, Norma; Barreto, Lídia; Nordi, João Carlos“Bee pollen” is pollen collected from flowers by honey bees. It is used by the bees to nourish themselves, mainly by provid ing royal jelly and brood food, but it is also used for human nutrition. For the latter purpose, it is collected at the hive entrance as pellets that the bees bring to the hive. Bee pollen has diverse bioactivities, and thus has been used as a health food, and even as medication in some co...
Influence of the storage conditions on the quality of bee pollen
Anjos, O.; Paula, Vanessa Branco; Delgado, Teresa; Estevinho, Letícia M.Bee pollen is a healthful food product with a good nutritional profile and therapeutic properties. However, the storage conditions may affect its composition and characteristics. This study aimed to evaluate the effect of the storage conditions on chemical composition of different monofloral bee pollen samples, namely acidity (pH), water activity, total acidity and the content of fibre, ash, reducing sugars, pr...
Enzyme inhibitory potential of Ligustrum lucidum Aiton berries
Paula, Vanessa Branco; Delgado, Teresa; Campos, Maria da Graça; Anjos, O.; Estevinho, Letícia M.Ligustrum lucidum Aiton and its berries have been used in Chinese traditional medicine for around two thousand years. In the present study, L. lucidium berries harvested in two regions of Portugal were studied. Haemolytic activity and inhibition of oxidative haemolysis as well as the enzyme inhibitory activities (α-amylase enzyme and acetylcholinesterase) were assessed. Results suggest that the different biolog...
Bee pollen as a natural antioxidant source to prevent lipid oxidation in black ...
Anjos, Ofélia; Fernandes, Rodrigo Adérito Basílio; Cardoso, Susana M.; Delgado, Teresa; Farinha, Nelson; Paula, Vanessa Branco; Estevinho, Letícia M.The antioxidant activity of bee pollen (mainly composed by Cistus ladanifer pellets) was explored in the context of black pudding production. For this purpose, three black pudding formulations comprising varying antioxidant compounds (sodium ascorbate, bee pollen and bee pollen extract) were produced. Bee pollen was characterized according to the botanical origin, antioxidant activity, total phenol and flavonoi...
HPLC/DAD fingerprint of standardize extracts from Ligustrum lucidum Aiton berri...
Delgado, Teresa; Paula, Vanessa Branco; Campos, Maria da Graça; Farinha, Nelson; Caeiro, André; Estevinho, Letícia M.; Anjos, O.HPLC/DAD fingerprint of standardize extracts from Ligustrum lucidum Aiton berries, for bioactive activity screening.