title: Phenolics in Slovenian bilberries ( Vaccinium myrtillus L.) and blueberries ( Vaccinium corymbosum L.).
abstract: Phenolics from bilberries ( Vaccinium myrtillus L.) sampled from seven different locations and highbush blueberries ( Vaccinium corymbosum L.) from one location in Slovenia were analyzed. In samples of both species 15 anthocyanins were identified by LC-MS/MS. Their contents were expressed as cyanidin 3-glucoside equivalents (C3GE); bilberries contained 1210.3 ± 111.5 mg C3GE/100 g fw and blueberries 212.4 ± 14.1 mg C3GE/100 g fw. Glycosides of delphinidin and cyanidin were predominant (488.5 vs 363.6 mg C3GE/100 g fw) in the bilberries and glycosides of malvidin (108.0 vs 100.8 mg C3GE/100 g fw) in the blueberries, whereas the contents of peonidin were lowest (74.5 vs 4.8 mg C3GE/100 g fw) in both berries. The contents of flavanols, flavonols, phenolic acids, and stilbenes were determined by LC-MS. For the first time, rutin was identified (bilberries, 0.2 ± 0.0 mg/100 g fw; blueberries, 3.1 ± 0.1 mg/100 g fw). Chlorogenic acid (as 3-caffeoylquinic acid) was the most abundant among the phenolic acids (23.1 ± 1.0 mg/100 g fw in bilberries and 70.0 ± 3.4 mg/100 g fw in blueberries). Statistical analysis shows that the content of 27 individual flavonoids, phenolic acids, and stilbenes can be used to identify the picking region of these Slovenian bilberries.
authors.affiliation: Department of Food Science and Technology, University of Ljubljana, 1000 Ljubljana, Slovenia.
authors.forename: Spela
authors.initials: S
authors.lastname: Moze
authors.forename: Tomaz
authors.initials: T
authors.lastname: Polak
authors.forename: Lea
authors.initials: L
authors.lastname: Gasperlin
authors.forename: Darinka
authors.initials: D
authors.lastname: Koron
authors.forename: Andreja
authors.initials: A
authors.lastname: Vanzo
authors.forename: Natasa
authors.initials: N
authors.lastname: Poklar Ulrih
authors.forename: Veronika
authors.initials: V
authors.lastname: Abram
mesh_terms: D000872:Anthocyanins / Q000032:analysis; D002726:Chlorogenic Acid / Q000032:analysis; D005419:Flavonoids / Q000032:analysis; D005638:Fruit / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D017524:Slovenia; D029796:Vaccinium / Q000737:chemistry*; D029800:Vaccinium myrtillus / Q000737:chemistry*
chemical_list: D000872:Anthocyanins; D005419:Flavonoids; D010636:Phenols; D002726:Chlorogenic Acid