Dear Lactnet Friends;

J Agric Food Chem. <http://www.ncbi.nlm.nih.gov/pubmed/23597247#> 2013 Apr
18. [Epub ahead of print]
Synthesis of Structured Lipid Enriched with Omega Fatty Acids and sn-2
Palmitic Acid by Enzymatic Esterification, and Its Incorporation in
Powdered Infant Formula.
Nagachinta S<http://www.ncbi.nlm.nih.gov/pubmed?term=Nagachinta%20S%5BAuthor%5D&cauthor=true&cauthor_uid=23597247>
, Akoh CC<http://www.ncbi.nlm.nih.gov/pubmed?term=Akoh%20CC%5BAuthor%5D&cauthor=true&cauthor_uid=23597247>
.
 Abstract

Structured lipid (SL) enriched with arachidonic (ARA) and docosahexaenoic
(DHA) acids was produced from tripalmitin using Lipozyme TLIM. The effects
of acyl donor, that is, free fatty acids vs. fatty acid ethyl esters on the
reactions were compared. The highest total incorporation of ARA and DHA was
obtained when the reaction continued for 24 h, at a substrate mole ratio of
9, using free fatty acids as acyl donors (acidolysis). The SL prepared by a
large-scale acidolysis reaction, contained 17.69±0.09% total ARA,
10.75±0.15% total DHA, and 48.53±1.40% sn-2 palmitic acid. SL thermograms
exhibited multiple peaks indicating complexity of the triacylglycerol (TAG)
distribution. RP-HPLC analysis revealed nine of SL twenty-six TAG molecular
species that were similar to those of human milk fat.

Powdered infant formulas containing the SL were prepared by
wet-mixing/spray-drying and dry-blending methods. Formula prepared with
microencapsulated SL and dry-blending method had better oxidative stability
and visual quality.

-- 
Nikki Lee RN, BSN, Mother of 2, MS, IBCLC, CCE, CIMI, ANLC, CKC
Author:* Complementary and Alternative Medicine in Breastfeeding Therapy*
www.breastfeedingalwaysbest.com
https://www.facebook.com/nikkileehealth

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