Antioxidant Activity and Total Phenolic Content of Date Palm (Phoenix dactylifera L.) Fruits from Taif Governorate, Saudi Arabia.

摘要

ABSTRACT Date palm (Phoenix dactylifera L.) fruit is well known for its nutritional and health benefits in Middle East countries. The present study has been carried out to evaluate antioxidant activity and total phenolic content of three date varieties known as Sefri, Sari and Ruzeiz, from Taif Governorate, Saudi Arabia. The samples, at their tamr stage of ripening, were extracted separately with five solvents of decreasing polarity; 20% and 50% aqueous ethanol, absolute ethanol, acetone and et.