The study was accomplished on proteins (caseins – whey proteins) of local milk after producing casein by precipitation with ethanol , and whey proteins by heat precipitation. The functional properties (Water Binding – Emulsifying Properties – Gelatio
n) were studied on prepared milk proteins , the witness experiment (pure casein) was followed for comparison.
This functional properties were repeated after adding xanthane and starch with three different concentrations for each kind of proteins , then the results were compared. For statistical analysis, the system of totally –random selections was applied, and a comparison was made as of L.S.D test, and possibility level at 5%. The results showed improvement in functional properties of prepared milk proteins when xanthane and starch were added in the percentage ( 5 - 5 – 10 % ) for the properties (Water Binding – Emulsifying Properties – Gelation ) respectively.
In this research we improve the desalting process by determine the
perfect value of demulsifier and washing water flow rate , reducing
the salts concentration of separated water current going to first stage
desalting and increasing residence time
of oil into desalter according
to the characteristic of oil and the process condition.
