Antioxidant capacity, polyphenol content and contribution to dietary intake of 52 fruits sold in Spain

Total antioxidant capacity (TAC) and total polyphenol content (TPC) of 52 fruits sold in Spain were evaluated by FRAP, ABTS, DPPH and Folin-Ciocalteu. For berries, TAC was 9, 17 and 31 times greater than for oranges, bananas and apples, respectively. Consumption of unpeeled fruit increases TAC and TPC by 2.4 times. Oranges contribute most to TAC and TPC (33% and 32% respectively) in the Spanish diet. Oranges, strawberries, tangerines, grapes and bananas account for 76% of the TAC of fruits consumed in Spain. The consumption of fruit in Spain has remained stable for the last eight years, but falls below WHO recommendations for daily intake. Greater consumption of fruits is recommended, to increase TAC and TPC and to reduce the risk of developing chronic disease. RESUMENLa capacidad antioxidante total (CAT) y el contenido total de polifenoles (PT) de 52 frutas adquiridas en Espana se evaluaron por FRAP, ABTS, DPPH y Folin-Ciocalteu. Las bayas poseian una CAT de 9, 17 y 31 veces mayor que las naranjas, platanos y manzanas, respectivamente. El consumo de fruta sin pelar aumenta la CAT y PT en 2,4 veces. Las naranjas son las que mas contribuyen a CAT y PT (33% y 32% respectivamente) en la dieta espanola, si anadimos fresas, mandarinas, uvas y platanos esta sube al 76%. El consumo de fruta en Espana se ha mantenido estable durante los ultimos ocho anos, pero esta por debajo de las recomendaciones de la OMS para la ingesta diaria. Se recomienda un mayor consumo de frutas, para aumentar CAT y PT y asi reducir el riesgo de desarrollar enfermedades cronicas.