Journal
JOURNAL OF FUNCTIONAL FOODS
Volume 19, Issue -, Pages 821-827Publisher
ELSEVIER
DOI: 10.1016/j.jff.2015.04.021
Keywords
n-3 LC-PUFA enrichment; Flaxseed; Fish oil; Isochrysis galbana; DHA Gold; Egg yolk
Categories
Funding
- Flanders' Food - IWT (OMEGA-EI)
- agency for Innovation by Science and Technology (IWT strategic research grant)
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Four different omega-3 polyunsaturated fatty acid (n-3 PUFA) sources (flaxseed, Isochrysis galbana, fish oil and DHA Gold) were supplemented to the diet of laying hens in such a way that the same amount of extra n-3 PUPA (120 mg per 100 g feed) was added to the diet and enrichment of egg yolk with n-3 PUFA was monitored. The obtained n-3 long chain (LC)-PUPA enrichment was not as efficient for all n-3 PUFA sources. The lowest enrichment efficiency (approximate to 6%) was observed when flaxseed (a-linolenic acid source) was supplemented. Drastically higher n-3 LC-PUFA enrichment efficiencies were observed with supplementation of the n-3 LC-PUFA sources. However, for the n-3 LC-PUFA sources (fish oil, I. galbana and DHA Gold) differences in enrichment efficiencies were observed (approximate to 55%,approximate to 30% and approximate to 45%, respectively), mainly because of different bio-accessibility of the n-3 PUPA and different n-3 PUFA profiles of the three sources. (C) 2015 Elsevier Ltd. All rights reserved.
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