Artículo
Antioxidant Activity in Hepatopancreas of the Shrimp (Pleoticus muelleri ) by Electron Paramagnetic Spin Resonance Spectrometry
Fecha de publicación:
04/2004
Editorial:
American Chemical Society
Revista:
Journal of Agricultural and Food Chemistry
ISSN:
0021-8561
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Free radical scavenging properties of hepatopancreas extracts of Pleoticus muelleri were evaluated by electron paramagnetic spin resonance spectrometry methods (EPR) against the stable 1,1-diphenyl2-picrylhydrazyl (DPPH) radical. The present study was carried out to characterize different physiological stages of the shrimp under environmental and nutritional stress, evaluating the effect on growth, survival, and functional morphology of the hepatopancreas. Feeding trials were carried out on juveniles (1 g initial weight) held in aquaria. Each diet, with different concentrations of vitamins A and E, was tested in triplicate groups during 25 days. The control groups were fed with fresh squid mantle and with a vitamin-free diet. For all of the diets, the extracts exhibited strong DPPH radical scavenging activity, suggesting that the tissue is a powerful natural antioxidant. Individuals fed with different concentrations of vitamin E showed the strongest effect on the DPPH radicals, reducing the DPPH radicals to 50%, after an incubation period of 3 min. In contrast, the extracts of control animals, fed with squid mantle, had the weakest antioxidant activity (4%). These data indicated that the presence of vitamin E in the diet can provide immediate protection against free radicals.
Palabras clave:
ANTIOXIDANT
,
HEPATOPANCREAS
,
SHRIMP
,
ELECTRON PARAMAGNETIC SPIN RESONANCE
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Identificadores
Colecciones
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Díaz, Ana Cristina; Fernandez Gimenez, Analia Veronica; Mendiara, Sara Noemí; Fenucci, Jorge Lino; Antioxidant Activity in Hepatopancreas of the Shrimp (Pleoticus muelleri ) by Electron Paramagnetic Spin Resonance Spectrometry; American Chemical Society; Journal of Agricultural and Food Chemistry; 52; 10; 4-2004; 3189-3193
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