Natural vitamin E enrichment of Artemia salina fed freshwater and marine microalgae |
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Authors: | Rosa Vismara Stefano Vestri Claudia Kusmic Laura Barsanti Paolo Gualtieri |
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Institution: | (1) Istituto di Biofisica, CNR Area della Ricerca Pisa, Via Moruzzi 1, Pisa, 56124, Italy |
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Abstract: | Three species of microalga, the freshwater Euglena gracilis and the marine Dunaliella salina and Tetraselmis suecica, were compared in terms of vitamin E enrichment and survival and growth of the brine shrimp Artemia salina. The tocopherol content was investigated using HPLC for the post-larval and pre-adult stages of Artemia fed the microalgae and the results compared to the initial content of unfed newly hatched nauplii. There was a markedly higher content of tocopherols (about two-fold) in Artemia fed Euglena. Since this microalga contains other antioxidants such as -carotene, vitamin C and glutathione, bioactive molecules such as PUFA, and the immunostimulant polysaccharide -glucan, it represents a valuable alternative for enriching the diets of Artemia and increase its nutritional value as a food item. |
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Keywords: | Dunaliella salina Euglena gracilis Tetraselmis suecica Tocopherol |
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