الفهرس 
Introduction and Aim of the workOnly 14 pages are availabe for public view
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Abstract
Food processing factories produce annually large amounts of different wastes. The accumulation of such wastes has a bad impact on the environment and presents a burden on the food producers to get red of them. In order to utilize some of these wastes as useful by-products, chemical compositions, functional properties wastes were chosen for the present study namely, orange seeds and tomato seeds, beside tomato leaves on the basis of their high protein content and big quantities which make them suitable for protein concentration of high quality. This protein concentrate was used for preparation of convenient and economically low cost food suitable for all different ages of Egyptian families.
from the obtained results and discussions the following points could be concluded :-
1- The chemical composition of the raw materials was studied, covering, moisture, crude protein, crude ash, ether-extract, crude fiber and total carbohydrates. Crude protein content varied from 15.31% for orange seeds to 29.19% for tomato seeds (on dry weight basis).
2- The mineral content of orange seeds, tomato seeds and tomato leaves showed that potassium was the highest macroelement (9200-28500 p.p.m.), while iron was the highest microelement (1.05-1.39 p.p.m.).