Abstract
AbstractThe configurational isomers of astaxanthin (3,3′‐dihydroxy‐β,β‐carotene‐4,4′‐dione) from the flesh of salmon (Salmo salar and Oncorhynchus) caught at different places in Europe and Canada were isolated and analyzed as (−)‐camphanic acid diesters by means of HPLC. The biological variation in the composition of the configurational isomers in seven fish was surprisingly similar: 78 to 85% of (3S, 3′S)‐astaxanthin, 12 to 17% (3R, 3′R)‐astaxanthin and 2 to 6% meso‐astaxanthin.
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