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Research Trends in the Dominating Microalgal Pigments, β-carotene, Astaxanthin, and Phycocyanin Used in Feed, in Foods, and in Health Applications

Eriksen NT

Three pigments, β-carotene, astaxanthin and phycocyanin are presently well-established microalgal products, produced at large-scale in cultures of microalgae or cyanobacteria and used as natural colours in feed and foods and as nutritional additives. Applied research in these 3 pigments is, however, still developing rapidly; particularly in their effects on human health. This commentary provides a brief overview on the main functional effects of β- carotene, astaxanthin and phycocyanin and presents an analysis of the current trends in research activities in relation to their used in feed, foods and health.