Appeal No. 94-1707
Application 07/345,622
DECISION ON APPEAL
This is an appeal under 35 U.S.C. § 134 from the final rejection of claims 12
through 19 and 29 through 31, all the claims remaining in the application.
Claim 12 is illustrative of the subject matter on appeal and reads as follows:
12. A process for producing omega-3 unsaturated fatty acid enriched 2-
monoglycerides, comprising the steps of:
a) combining an alcohol medium, a triglyceride which is a marine oil
containing omega-3 unsaturated fatty acids, a lipase catalyst and an
amount of water sufficient to activate the lipase, under conditions
sufficient for transesterification to occur between the alcohol and the
fatty acids located on the 1- and 3-positions of the triglyceride,
thereby producing 2-monoglycerides containing omega-3 fatty acids;
b) contacting the monoglycerides obtained in (a) with an organic solvent
to preferentially dissolve unsaturated monoglycerides therein and
reducing the temperature of the solution of monoglycerides to
precipitate monoglycerides containing saturated fatty acids, thereby
leaving a supernatant containing 2-monoglycerides having omega-3
unsaturated fatty acids that is substantially free of saturated
monoglycerides;
c) separating the precipitate obtained in (b) from the supernatant; and
d) removing the solvent from the supernatant to obtain 2-monoglycerides
enriched in omega-3 unsaturated fatty acids compared to natural
marine oils.
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