[Carotenoids and vitamin A in fish].
Seven commercial salmon and six trout samples were investigated. Retinol and the carotenoids astaxanthin and canthaxanthin important for pigmentation of the muscle were determined by RP-HPLC. Vitamin A concentrations of raw salmon samples were 16-19 micrograms/100 g, of smoked salmon samples 9-19 micrograms/ 100 g; retinol values of salmon trout (raw) and trout (raw) reached 14-16 micrograms/100 g and 7-9 micrograms/100 g. Concentrations of astaxanthin the important carotenoid of pigmentation, ranged in samples of salmon from 310-465 micrograms/100 g. Samples of salmon trout showed astaxanthin values between 90 and 536 micrograms/100 g, trout samples only 67-85 micrograms/100 g. Concentrations of canthaxanthin were different in the examined samples and were not detectable in all samples. Highest values of canthaxanthin were found in salmon trout samples (113-226 micrograms/100 g), Irish smoked salmon and stremel-salmon (145-169 micrograms/100 g). Raw samples of salmon and of trout showed only low concentrations of canthaxanthin. Astaxanthin and canthaxanthin together reached values of 419-524 micrograms/100 g for salmon, 316-701 micrograms/100 g for salmon trout, and 72-91 micrograms/100 g for trout samples.
Institut für Ernährungswissenschaften, Wien, Austria.
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Elmadfa
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Majchrzak
D000818:Animals; D002338:Carotenoids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D005399:Fishes; D008460:Meat / Q000032:analysis*; D008461:Meat Products / Q000032:analysis; D012474:Salmon; D013045:Species Specificity; D014337:Trout; D014801:Vitamin A / Q000032:analysis*; D024341:Xanthophylls; D019207:beta Carotene / Q000031:analogs & derivatives / Q000032:analysis
D024341:Xanthophylls; D019207:beta Carotene; D014801:Vitamin A; D002338:Carotenoids; C005948:astaxanthine