الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The date palm (Phoenix dactylifera L.), It is known as “tree of life”
plays an important social, environmental, and economic role for many people living in arid and semiarid regions of the world. Egypt considered
as the first country of the top ten date producers in the world (1,501,799
tons), followed by Iran (1,083,720 tons) and Saudi Arabia (1,065,032 tons). Non-use of lower quality dates as by-product for human’s food is a
real economic loss because it is rich in biologically active compounds
that can be extracted and can be used as value added materials to food.
The date low quality is processed to produce many products such as date
syrup. Consequently, are available very large amounts of date fruit
residues (DFR) or date press cake (DPC), which is the by-product from
syrup extraction.
In spite of progress in production, at national and international
scales, is unfortunately accompanied by a considerable increase in loss of
dates during harvest, storage, or during conditioning process. Loss of
dates could reach more than 30% of the whole production. This
constitutes about 540 000 tones/year in Egypt and nearly 2 000 000
tones/year in the world. The loss of dates are not consumed by human for
several reasons which include low quality, hard texture, contamination by
champignons or insects. These date by-products are generally rejected or
in some limited cases, used for animal feed. A study the physiochemical
properties and phytochemical characteristics of low grade dates or nonedible dates (dates residues or Hashf), Saidy cultivar, resulting from the
date factories compared with normal dates. The objectives of study were
to improve the economic value of low quality date and to evaluate the
possibility to produce functional food products using date and its byproducts.