Titre du document / Document title

Phenolic compounds and antioxidant capacity of Georgia-grown blueberries and blackberries

Auteur(s) / Author(s)

SELLAPPAN Subramani ⁽¹⁾ ; AKOH Casimir C. ⁽¹⁾ ; KREWER Gerard ⁽²⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Department of Food Science and Technology, The University of Georgia, Athens, Georgia 30602-7610, ETATS-UNIS
⁽²⁾ Department of Horticulture, The University of Georgia, Tifton, Georgia 31793, ETATS-UNIS

Résumé / Abstract

Blueberries and blackberries grown at various locations in Georgia were collected and analyzed for flavonoids, total anthocyanins, total polyphenols, and Trolox-equivalent antioxidant capacity (TEAC). Each sample was analyzed for phenolic acids (gallic acid, p-hydroxybenzoic acid, caffeic acid, ferulic acid, and ellagic acid) and flavonoids (catechin, epicatechin, myricetin, quercetin, and kaempferol). A high-performance liquid chromatographic (HPLC) method with photodiode array detection was used for analysis. Compounds were analyzed as aglycons after acid hydrolysis with 1.2 M HCI. Identification of each compound was based on retention time and UV spectra by comparison with pure commercial standards. Phenolic acids ranged from 0.19 to 258.90 mg/100 g fresh weight (FW), and flavonoids ranged from 2.50 to 387.48 mg/100 g FW. Total polyphenols ranged from 261.95 to 929.62 mg/100 g FW, and total anthocyanins ranged from 12.70 to 197.34 mg/100 g FW. TEAC values varied from 8.11 to a maximum of 38.29 æM/g FW. A linear relationship was observed between TEAC values and total polyphenols or total anthocyanins. The data indicate that blueberries and blackberries are rich sources of antioxidants.

Revue / Journal Title

Journal of agricultural and food chemistry   ISSN 0021-8561   CODEN JAFCAU 

Source / Source

2002, vol. 50, n^o8, pp. 2432-2438 (27 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Chemical Society, Washington, DC, ETATS-UNIS  (1953) (Revue)

Mots-clés anglais / English Keywords

Flavonoid ; Phenols ; Woody plant ; Small fruits ; America ; North America ; United States ; Rosaceae ; Spermatophyta ; Angiospermae ; Dicotyledones ; Ericaceae ; Prevention ; Health food ; Quercetin ; Catechin ; Cinnamic acid(4-hydroxy 3-methoxy) ; Georgia ; Salicylic acid ; Gallic acid ; Kaempferol ; Anthocyanin ; Polyphenol ; Rubus ; Vaccinium corymbosum ; Vaccinium ashei ; Caffeic acid ; HPLC chromatography ; Identification ; Blackberry ; Blueberry ; Berry ; Antioxidant ; Biological activity ; Chemical composition ;

Mots-clés français / French Keywords

Flavonoïde ; Phénols ; Plante ligneuse ; Petit fruit ; Amérique ; Amérique du Nord ; Etats Unis ; Rosaceae ; Spermatophyta ; Angiospermae ; Dicotyledones ; Ericaceae ; Myricétine ; Epicatéchine ; Prévention ; Aliment santé ; Quercétine ; Catéchine ; Cinnamique acide(4-hydroxy-3-méthoxy) ; Géorgie ; Salicylique acide ; Gallique acide ; Kaempférol ; Anthocyane ; Polyphénol ; Rubus ; Vaccinium corymbosum ; Vaccinium ashei ; Caféique acide ; Chromatographie HPLC ; Identification ; Mûre (ronce) ; Myrtille ; Baie(fruit) ; Antioxydant ; Activité biologique ; Composition chimique ;

Mots-clés espagnols / Spanish Keywords

Flavonoide ; Fenoles ; Planta leñosa ; Pequeños frutos ; America ; America del norte ; Estados Unidos ; Rosaceae ; Spermatophyta ; Angiospermae ; Dicotyledones ; Ericaceae ; Prevención ; Alimentos sanos ; Quercetina ; Catequina ; Cinámico ácido(4-hidroxi 3-metoxi) ; Georgia ; Gálico ácido ; Antocianina ; Polifenol ; Rubus ; Vaccinium corymbosum ; Vaccinium ashei ; Cromatografía HPLC ; Identificación ; Zarzamora ; Mirtillo ; Baya(fruto) ; Antioxidante ; Actividad biológica ; Composición química ;

Localisation / Location

INIST-CNRS, Cote INIST : 7332, 35400010051259.0380