Abstract
The marine microalga Isochrysis galbana Parke is presented as an alternative source of eicosapentaenoic acid (EPA). The effects of growth conditions on polyunsaturated fatty acid productivity with special attention to EPA and docosahexaenoic (DHA) acids were studied. The variables tested were: aeration flow rate, nitrate concentration, temperature, light intensity, micronutrient and vitamin concentration, and pH. Growth conditions producing the greatest EPA yields of over 200 μg/litre/h, are indicated as a starting point for a large scale mass culture system which would develop I. galbana's potential.
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