Nassar, Mahmoud I Phenolic metabolites from Pyruscalleryana and evaluation of its free radical scavenging activity. [electronic resource] - Carbohydrate research Jan 2011 - 64-7 p. digital Publication Type: Journal Article ISSN: 1873-426X Standard No.: 10.1016/j.carres.2010.11.007 doi Subjects--Topical Terms: Free Radical Scavengers--chemistryMolecular StructurePhenols--chemistryPlant Extracts--chemistryPyrus--chemistry