title: HPLC-PDA-MS fingerprinting to assess the authenticity of pomegranate beverages.
abstract: HPLC with fluorescence, PDA and mass spectrometric detection were used to analyse the (poly)phenol content of a Bordeaux red wine, POM Wonderful pomegranate juice and three other beverages advertised as being made from 100% pomegranate juice. The red wine and POM Wonderful juice contained characteristic anthocyanin profiles with the latter also being characterised by the presence of ellagitannins and the former by flavan-3-ols monomers and procyanidin dimers and trimers. The three other pomegranate products all contained the expected ellagitannins but their anthocyanin profiles were a mixture of red wine and pomegranate anthocyanins. They also contained flavan-3-ol monomers and procyanidin dimers and trimers, components not usually detected in 100% pomegranate beverages. The HPLC-based procedures, therefore, provide a straight-forward means of accessing the authenticity of pomegranate-based products with the ready detection of constituents derived from red grapes.
authors.affiliation: Plant Products and Human Nutrition Group, Joseph Black Building, School of Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
authors.forename: Gina
authors.initials: G
authors.lastname: Borges
authors.forename: Alan
authors.initials: A
authors.lastname: Crozier
mesh_terms: D001628:Beverages / Q000032:analysis* / Q000592:standards; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D005506:Food Contamination / Q000032:analysis*; D029561:Lythraceae / Q000737:chemistry*; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D011786:Quality Control