Details

Autor(en) / Beteiligte

• Foss, Per
• Storebakken, Trond
• Schiedt, Katharina
• Liaaen-Jensen, Synnøve
• Austreng, Erland
• Streiff, Konrad

Titel

Carotenoids in diets for salmonids: I. Pigmentation of rainbow trout with the individual optical isomers of astaxanthin in comparison with canthaxanthin

Ist Teil von

• Aquaculture, 1984-10, Vol.41 (3), p.213-226

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

1984

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• Visual and chemical determinations revealed that the individual optical isomers of astaxanthin were more efficacious than canthaxanthin in pigmenting the flesh of rainbow trout ( Salmo gairdneri, Richardson). The visual assessment of the astaxanthin pigmentation by means of a colour scale correlated well with the chemical determination. The same utilization was found for all three astaxanthin isomers, ( 3S, 3′S)-, ( 3R, 3′S)-, ( 3R, 3′R)-astaxanthin and a 1 : 2 : 1 mixture of the three isomers. No epimerization took place at the chiral centres of C-3 and C-3′ in astaxanthin. Astaxanthin and canthaxanthin were not interconverted. No metabolites were detected in the flesh.