Effect of Fluorescent Light on the Isomerization of Retinyl Palmitate in Skim Milk

A. M. GAYLORD, J. J. WARTHESEN, D. E. SMITH

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Skim milk fortified with retinyl palmitate was exposed to fluorescent light and analyzed for the isomers of retinyl palmitate. High performance liquid chromatography was used to separate and identify the all‐trans and some cis forms. Besides all‐trans retinyl palmitate, small amounts of 13‐cis retinyl palmitate were present in unexposed skim milk. The level of all‐trans decreased over the 48‐hr period of light exposure. The 13‐cis levels also decreased but not as rapidly. The level of the 9‐cis isomer increased over the 48‐hr period of light exposure.

Original languageEnglish (US)
Pages (from-to)1456-1458
Number of pages3
JournalJournal of food science
Volume51
Issue number6
DOIs
StatePublished - Nov 1986

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