Browsing by Author "Thrasyvoulou, Andreas"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Impact of traditional and modern beekeeping technologies on the quality of honey of Guinea-BissauPublication . Lopes, Mélissa; Falcão, Soraia; Dimou, Maria; Thrasyvoulou, Andreas; Vilas-Boas, MiguelGuinea-Bissau, located on the west coast of Africa, is a country with low human development, where beekeeping and its products can contribute to enrich the nutritional status of population and reduce poverty. The goal of this study was to support the development of beekeeping activities through the quality assessment of local bee products, such as honey, building conditions for commercialization at international markets. This is the first study in Guinean bee products. The botanical origin and chemical composition of honeys produced under traditional and modern beekeeping technologies was evaluated. A clear separation between the two modes of production was found considering the honey quality parameters. Guinean honeys fits the majority of the international standards, allowing its classification as nectar honeys. HMF seems the major handicap, indicating a need to improve processing and storage.
- Standard methods for pollen researchPublication . Campos, Maria G.; Anjos, Ofélia; Chica, Manuel; Campoy, Pascual; Nozkova, Janka; Almaraz-Abarca, Norma; Barreto, Lidia M.R.C.; Nordi, João Carlos; Estevinho, Leticia M.; Pascoal, Ananias; Paula, Vanessa B.; Choupina, Altino; Dias, L.G.; Tešić, Živoslav L. j.; Mosić, Mirjana D.; Kostić, Aleksandar Ž.; Pešić, Mirjana B.; Milojković-Opsenica, Dušanka M.; Sickel, Wiebke; Ankenbrand, Markus J.; Grimmer, Gudrun; Steffan-Dewenter, Ingolf; Keller, Alexander; Förster, Frank; Tananaki, Chrysoula H.; Liolios, Vasilios; Kanelis, Dimitrios; Rodopoulou, Maria-Anna; Thrasyvoulou, Andreas; Paulo, Luísa; Kast, Christina; Lucchetti, Matteo A.; Glauser, Gaëtan; Lokutova, Olena; Almeida-Muradian, Ligia Bicudo; Szczęsna, Teresa; Carreck, Norman L.“Bee pollen” is pollen collected from flowers by honey bees. It is used by the bees to nourish themselves, mainly by providing 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 countries. In this paper, we provide standard methods for carrying out research on bee pollen. First, we introduce a method for the production and storage of bee pollen which assures quality of the product. Routine methods are then provided for the identification of the pollen’s floral sources, and determination of the more important quality criteria such as water content and content of proteins, carbohydrates, fatty acids, vitamins, alkaloids, phenolic and polyphenolic compounds. Finally, methods are described for the determination of some important bioactivities of bee pollen such as its antioxidant, anti-inflammatory, antimicrobial and antimutagenic properties. Métodos estándar Para la investigación del polen El "polen de abeja" es el polen recogido de las flores por las abejas melíferas. El polen de abeja es utilizado para nutrir a las propias abejas, principalmente para proporcionar jalea real y alimento para las crías, pero también se utiliza para la nutrición humana. Para este último fin, se recoge en la entrada de la colmena en forma de gránulos que las abejas llevan a la colmena. El polen de abeja tiene diversas bioactividades, por lo que se hautilizado como alimento para la salud, e incluso como medicamento en algunos países. En este artículo, proporcionamos métodos estándar para llevar a cabo investigaciones sobre el polen de abeja. En primer lugar, presentamos un método de producción y almacenamiento de polen de abeja que garantiza la calidad del producto. A continuación, se ofrecen métodos de rutina para la identificación de las fuentes florales del polen y la determinación de los criterios de calidad más importantes, como el contenido de agua y de proteínas, carbohidratos, ácidos grasos, vitaminas, alcaloides y compuestos fenólicos y polifenólicos. Por último, se describen métodos para la determinación de algunas bioactividades importantes del polen de abeja, como sus propiedades antioxidantes, antiinflamatorias, antimicrobianas y antimutagénicas.