Seasonal Variation of Provitamin D2 and Vitamin D2 in Perennial Ryegrass (Lolium perenne L.)

Rie Bak Jäpelt, Thomas Didion, Jørn Smedsgaard, Jette Jakobsen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Ergosterol (provitamin D(2)) is converted to vitamin D(2) in grass by exposure to UV light. Six varieties of perennial ryegrass (Lolium perenne L.) were harvested four times during the season, and the contents of vitamin D(2) and ergosterol were analyzed by a sensitive and selective liquid chromatography tandem mass spectrometry method. Weather factors were recorded, and a principal component analysis was performed to study which factors were important for the formation of vitamin D(2). The results suggest that a combination of weather factors is involved and that the contents of ergosterol and vitamin D(2) change more than a factor of 10 during the season. These results demonstrate that grass potentially can be a significant source of vitamin D for grazing animals and animals fed on silage and hay.
Original languageEnglish
JournalJournal of Agricultural and Food Chemistry
Volume59
Issue number20
Pages (from-to)10907-10912
ISSN0021-8561
DOIs
Publication statusPublished - 2011

Fingerprint Dive into the research topics of 'Seasonal Variation of Provitamin D2 and Vitamin D2 in Perennial Ryegrass (Lolium perenne L.)'. Together they form a unique fingerprint.

Cite this