RT Journal Article T1 Organic bee pollen: botanical origin, nutritional value, bioactive compounds, antioxidant activity and microbiological quality A1 Feás Sánchez, Xesús A1 Vázquez Tato, María del Pilar A1 Estevinho, Leticia M. A1 Seijas Vázquez, Julio Antonio A1 Iglesias Becerra, Antonio K1 Bee pollen K1 Antioxidant capacity K1 Bioactive compound K1 Fatty acids K1 Microbiological safety K1 Organic food AB Organic bee pollen (BP, n = 22) harvested from the Douro International Natural Park (DINP, Portugal) was studied. Nine botanical families were found in the mixture of the samples. The water activity and pH ranged 0.21–0.37 and 4.3–5.2, respectively. The BP analyses averaged 67.7% carbohydrates, 21.8% crude protein, 5.2% crude fat and 2.9% ash. The energy ranged from 396.4 to 411.1 kcal/100 g. The principal fatty acid found was linolenic, followed by linoleic acid, palmitic acid and oleic acid. The phenolic and flavonoid contents varied from 12.9 to 19.8 mg of gallic acid equivalents/g of extract and from 4.5 to 7.1 mg of catechin equivalents/g of extract, respectively. The scavenger activity and β-carotene bleaching assays values (EC50) were 3.0 ± 0.7 mg/mL and 4.6 mg/mL ± 0.9 mg/mL, respectively. E. coli, sulphite-reducing Clostridia, Salmonella and S. aureus were not found. Since there are studies indicating appreciable differences among BPs from different regions, the full characterization of BP from diverse origins still appears to be a sound research priority in order to obtain reliable data about this beehive product PB MDPI YR 2012 FD 2012 LK http://hdl.handle.net/10347/22990 UL http://hdl.handle.net/10347/22990 LA eng NO Feás, X.; Vázquez-Tato, M.P.; Estevinho, L.; Seijas, J.A.; Iglesias, A. Organic Bee Pollen: Botanical Origin, Nutritional Value, Bioactive Compounds, Antioxidant Activity and Microbiological Quality. Molecules 2012, 17, 8359-8377 NO We would like to thank the Portuguese beekeepers who kindly supplied us with the samples for this study. X. F. would also like to thank the Xunta de Galicia (Isidro Parga Pondal Program for Young Researchers, Grant No.: IPP-020) DS Minerva RD 28 abr 2026