PROPIEDADES ANTIOXIDANTES DE EXTRACTOS METANÓLICOS DE FRUTO DE FRESA DE VARIEDADES MEXICANAS Y EXTRANGERAS

Abstract

In recent years it has been a social tendency to look for a healthier way of life exploring natural options in health care, there is an extended bibliography that describes the benefits of the consumption of natural compounds from plant secondary metabolism. Especially, compounds from phenol family have awakened great interest in scientists. It has been found that berries are some of the richest fruits in phenols structures. Strawberry (Fragaria x ananassa) is now in day one of the most popular fruit in the world, not only for its unique is now in day but also for the benefits to human health of its consumption, due to the phenolic compounds present in this fruit, particularly flavonoids, which have shown to have antioxidant properties. Most prominent among the flavonoids are the anthocyanins, plant colorants responsible for the red color of strawberries. Strawberries are an important part of Mexico's economy, mainly because of their export market. In order to satisfy market needs, Mexican strawberry producers must pay royalties to get plants. Thus, new strawberry varieties showing to be competitive with yield of American and European varieties have been developed in México. However, anything is known about the internal quality of their fruit. The goal of this study was to evaluate the antioxidant capacity of the Mexican strawberry fruits, by measuring inhibition of the free radicals 2,2-difenil-1-picrilhidrazil (DPPH) and the 2,2'azinobis-(3- etilbenzotiazolin 6-sulfonic-acid) (ABTS) in three phenolic fraction obtained from mexican varieties CP. Zamorana and CP. Jacona, and also from foreigner strawberry verities Chiflon, Albion, Festival and Kristal. The flavonoids fraction showed higher antioxidant capacity than the other. The antioxidant capacity of Mexican strawberry varieties, make them competitive with the foreign varieties. Fruits from Jacona and Zamorana varieties had higher antioxidant activity than those from Albion and Chiflon,