Important functional properties of proteins in food applications are solubility, swelling and aqueous fat retention capacity, emulsifying activity and emulsion stability, foaming capacity, foam stability and gelling capacity . There is a lack of information in the literature on the functional properties of proteins from date palm seeds.1. Introduction. Date palm Phoenix dactylifera L. is an important commercial crop of the palm family Arecaceae. The family includes the genera et, Jain, Al-Khayri, amp Johnson, 2011. It is one of the oldest perennial fruit trees and has been cultivated since ancient times Riad, 2006. The tree can be cultivated until At one, Even a cell contains thousands of proteins, which function in various ways. Proteins are made up of different amino acids, for which genomes dictate the specific amino acids and their sequences. As a result, variations in protein activities and functions occur due to the complex structural and functional properties of long-evolving proteins. This study aims to valorize date palm seeds by extracting a DSFPE-enriched fibroprotein fraction and to examine the effect of pH on some of its functional properties. For this purpose, DSFPE was prepared from water-soluble extracts of defatted Deglet Nour and Allig seeds and obtained by precipitation. Proteins perform essential functions in all systems of the human body. These long chains of amino acids are crucially important for: catalyzing chemical reactions. synthesize and repair DNA. transport materials through the cell. receive and send chemical signals. respond to stimuli.