Abstract:
:Pacific white shrimp were fed diets containing natural pigments from Aztec marigold (Tagetes erecta) petals extracts (esterified and saponified). The pigmenting effect of these carotenoids was compared with a carotenoid-free control diet and a synthetic astaxanthin (Roche Carophyll Pink) supplemented diet. It was found that after 14 days of feeding, the shrimp showed that the saponified marigold extract and the high concentration esterified marigold extract supplemented diets produced a better pigmentation effect (between 50-70%) in the exoskeleton than the astaxanthin, the low concentration esterified marigold extract and the basal diets, the latter diets being non-significantly different among themselves. However, during the same 14 day period, non-significantly different results were observed in the carotenoid content of the shrimp abdominal muscle when fed with all diets except the low concentration esterified marigold extract diet that showed a significantly lower value than the saponified marigold extract diet. These results indicate that the main carotenoid sources in Tagetes erecta, namely lutein and zeaxanthin, are possibly metabolized into astaxanthin and deposited by the Pacific white shrimp.
journal_name
Arch Latinoam Nutrjournal_title
Archivos latinoamericanos de nutricionauthors
Vernon-Carter EJ,Ponce-Palafox JT,Pedroza-Islas Rsubject
Has Abstractpub_date
1996-09-01 00:00:00pages
243-6issue
3eissn
0004-0622issn
2309-5806journal_volume
46pub_type
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journal_title:Archivos latinoamericanos de nutricion
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journal_title:Archivos latinoamericanos de nutricion
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journal_title:Archivos latinoamericanos de nutricion
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