Pigmentation of the rainbow trout (Oncorhynchus mykiss) with oil-extrated astaxanthin from the langostilla (Pleuroncodes planipes) / Astaxantina de la langostilla, pleuroncodes planipes, extraída con aceite y su uso en la pigmentación de la trucha arcoiris oncorhynchus mykiss
Arch. latinoam. nutr
;
47(3): 237-41, sept. 1997. ilus, tab
Article
in Spanish
| LILACS
| ID: lil-228285
RESUMEN
The effect of oil-extracted astaxanthin from the red crab or langostilla (Pleuroncodes planipes) on the growth and pigmentation of forty five rainbow trouts (Oncorhynchus mykiss) was investigated by feeding a test diet supplemented with 75 mg/kg of astanthin during six weeks and compared with a control diet. The oil-extraction process of the pigment is described. Weight, flesh astaxanthin concentration, and color (A*a*,b*) of the flesh were measured at 0,3, and 6 weeks. No apparent effect of astaxanthin supplementation was observed on fish development. In spite of the low free astaxanthin amount in the diet (8 por ciento), an acceptable carotenoid concentration in the flesh (3,60 ñ 0,78 mg/kg, w/w), and a red hue (Hº ab = 44,13 ñ 2,36) were obtained at the end of the study. The red hue was strongly correlated with thecarotenoid concentration (r=0,98)
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Index:
LILACS (Americas)
Main subject:
Pigmentation
/
Fish Oils
/
Oncorhynchus mykiss
/
Crustacea
/
Fishes
Limits:
Animals
Language:
Spanish
Journal:
Arch. latinoam. nutr
Journal subject:
Bioqu¡mica
/
EducaÆo Alimentar e Nutricional
/
Fenmenos Fisiol¢gicos da NutriÆo
/
Microbiologia de Alimentos
/
NUTRICAO
Year:
1997
Type:
Article
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