الفهرس 
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Abstract
Esterfication is an important tool for protein modification, since it blocks free
carboxyl groups raising the net positive charge.
The obtained results can be summarized as follows:
Sesame seeds meal contained moisture (8.79%); ether extract (1.16%);
ash (6.05%); crude fiber(18.26%); crudeprotein(51.05%) and total
carbohydrates(41.74%).
The optimum conditions for isolating proteins from sesame seeds meal
were at pH 10, and 1:30 sample to solvent ratio, for 60 min at 45ᵒ C
using 0.5 N NaOH as a solvent, where the best conditions to reach
86.4% proteinesterfication by microwave were 560 microwave power
for 20 min and 20 meq of 5 N Hcl/g protein as catalyst and hexanol as a
solvent.
Using modified proteins helped to improve the physical and
microbiological properties of same vegetables and fruits. On the other
hand it was safe upon subjecting to biological evaluation