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Analysis of breast milk fatty acid composition using dried milk samples.


ABSTRACT: The effect of breast milk fatty acid (FA) composition, particularly levels of docosahexaenoic acid (DHA), on infant health outcomes is unclear. Part of the reason for this is difficulties in collecting, storing and shipping milk samples to the laboratory. Here we report the validation of a dried milk spot (DMS) system to measure FA composition to help overcome these obstacles. Milk FA were measured by gas chromatography and reported as percent of total FA; the FA of primary interest in this study were DHA and industrially produced trans FA (iTFA). Experiments were carried out using pooled milk samples from US (n?=?5) and Malawian women (n?=?50). Experiments compared liquid vs. DMS samples (n?=?55), assessed stability of FA composition under different storage conditions (n?=?5), and compared the results from two different labs using the same methods (n?=?5).Both % DHA and % iTFA levels in liquid and DMS samples were strongly correlated (R(2)?=?0.99 and 0.99, respectively, P?

SUBMITTER: Jackson KH 

PROVIDER: S-EPMC4727292 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Analysis of breast milk fatty acid composition using dried milk samples.

Jackson Kristina Harris KH   Polreis Jason J   Sanborn Laura L   Chaima David D   Harris William S WS  

International breastfeeding journal 20160125


<h4>Background</h4>The effect of breast milk fatty acid (FA) composition, particularly levels of docosahexaenoic acid (DHA), on infant health outcomes is unclear. Part of the reason for this is difficulties in collecting, storing and shipping milk samples to the laboratory. Here we report the validation of a dried milk spot (DMS) system to measure FA composition to help overcome these obstacles. Milk FA were measured by gas chromatography and reported as percent of total FA; the FA of primary in  ...[more]

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