Dietary fiber and minearl composition of date palm (Phoenix dactylifera L.) Seeds

Abstract

The seeds of four date palm (Phoenix dactylifera L.) cultivars, Hillawi, Khadrawi, Shamran and Medjool were analyzed for their dietary fiber and mineral composition. Total dietary fiber (72.27g/100g) and insoluble dietary fiber (63.44g/100g) were highest in seed of variety Hillawi. All the four varieties of date seed differed non-significantly from each other for their total dietary fiber, soluble dietary fiber and insoluble dietary fiber content. The variety Medjool contained highest amount of phosphorus (121.33mg/100g) and iron (1.83mg/100g) while variety Hillawi contained highest amount of zinc (1.49mg/100g). A non-significant (p≤0.05) difference was observed in calcium, potassium and magnesium content of all the varieties. Polyphenol content of date seed from different varieties ranged from 3065 to 2731.67 mg GAE/100g being highest in variety Shamran and lowest in variety Medjool.