Comparison of Phenolics and Phenolic Acid Profiles in Conjunction with Oxygen Radical Absorbing Capacity (ORAC) in Berries of Vaccinium arctostaphylos L. and V. myrtillus L.

0461614 - ÚEB 2017 RIV PL eng J - Článek v odborném periodiku
Colak, N. - Torun, H. - Grúz, Jiří - Strnad, Miroslav - Šubrtová, Michaela - Inceer, H. - Ayaz, F. A.
Comparison of Phenolics and Phenolic Acid Profiles in Conjunction with Oxygen Radical Absorbing Capacity (ORAC) in Berries of Vaccinium arctostaphylos L. and V. myrtillus L.
Polish Journal of Food and Nutrition Sciences. Roč. 66, č. 2 (2016), s. 85-91. ISSN 1230-0322. E-ISSN 2083-6007
Grant CEP: GA MŠMT(CZ) LO1204
Institucionální podpora: RVO:61389030
Klíčová slova: blueberry * bilberry * phenolic acids
Kód oboru RIV: EB - Genetika a molekulární biologie
Impakt faktor: 1.276, rok: 2016
http://www.degruyter.com/view/j/pjfns.2016.66.issue-2/pjfns-2015-0053/pjfns-2015-0053.xml

Caucasian blueberry (Vaccinium arctostaphylos L.) and bilberry (V. myrtillus L.), both native to Turkey, were evaluated for their total phenolics (TP) and anthocyanin (TAC) contents. Individual compositions of free phenolic acids and phenolic acids liberated from ester and glycoside forms were analyzed using UPLC-MS/MS. Berry extracts of each species were separated into three different fractions (sugar/acid, polyphenolic and anthocyanin) by solid phase extraction (SPE). The anthocyanin fractions of each species had the highest level of TP and TAC contents and ORAC values. Each species contained 10 phenolic acids representing each fraction, but in different quantities. The phenolic acids liberated from the esters and glycoside forms were caffeic acid and p-coumaric acid. The fractions containing phenolic acids liberated from ester and glycoside forms had a higher antioxidant capacity than that from free phenolic acids. The data suggest that both berries have potential as good dietary sources of phenolic antioxidants.
Trvalý link: http://hdl.handle.net/11104/0261220