Falcão, SoraiaVilas-Boas, MiguelFreire, CristinaDomingues, Maria R.M.Cardoso, Susana M.2011-07-042011-07-042009Falcão, S.; Vilas-Boas, Miguel; Freire, C.; Domingues, M.R.M.; Cardoso, S.M. (2009). Characterization of new phenolic derivatives in Portuguese propolis by electrospray mass spectroscopy. In EuroFoodChem XV. Copenhagahttp://hdl.handle.net/10198/5682Propolis is a resinous substance collected by honeybees from tree buds, comprising plant exudates, secreted substances from bee metabolism, pollen and waxes. This product is widely used in traditional medicine [I] and it has recently gained popularity as a health food supplement. Currently, it is extensively used in foods and beverages, and it is claimed to improve health and prevent diseases such as inflammation, heart disease, diabetes and cancer.engconference object