Quantitative determination of linoleic acid in infant formulas.
The aim of this paper is to develop a gas chromatographic method for the quantitative determination of linoleic acid in adapted, preterm, follow-up and special infant formulas. For sample preparation, lipids were extracted with a Soxhlet extractor after acid hydrolysis, and methyl esters of fatty acids were prepared in a sealed vial with hydrochloric acid in methyl alcohol and analysed using a packed polar column (SP 2330). Triheptadecanoin was chosen as internal standard. The method yielded reliable and repeatable results for all the examined formulas.
Bellomonte
G
G
Laboratorio degli Alimenti, Istituto Superiore di Sanità, Roma, Italia.
Giammarioli
S
S
Terilli
R
R
D002849:Chromatography, Gas / Q000379:methods; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007225:Infant Food / Q000032:analysis* / Q000145:classification; D007231:Infant, Newborn; D007234:Infant, Premature; D019787:Linoleic Acid; D008041:Linoleic Acids / Q000032:analysis*; D015203:Reproducibility of Results
D008041:Linoleic Acids; D019787:Linoleic Acid