Process for preparation of oil-free fish meal and recovery of polyunsaturated fatty acids
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United States of America Patent
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Oct 9, 1990
Grant Date -
N/A
app pub date -
Apr 28, 1987
filing date -
Apr 28, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for obtaining fish meal which is essentially free of oil, as well as recovering valuable free polyunsaturated fatty acids, comprising hydrolyzing membrane phospholipids in comminuted fish with aqueous alkali solution, at a temperature which is not substantially above ambient, adding a strong acid to release free polyunsaturated fatty acids, recovering the free fatty acids from the aqueous phase by mechanical separation, and drying the aqueous phase.
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