Microalgae are sunlight-driven green cell factories for the production of potential bioactive products and biofuels. Nannochloropsis represents a genus of marine microalgae with high photosynthetic efficiency and can convert carbon dioxide to storage lipids mainly in the form of triacylglycerols and to the ω-3 long-chain polyunsaturated fatty acid eicosapentaenoic acid (EPA). Recently, Nannochloropsis has received ever-increasing interests of both research and public communities. This review aims to provide an overview of biology and biotechnological potential of Nannochloropsis, with the emphasis on lipid production. The path forward for the further exploration of Nannochloropsis for lipid production with respect to both challenges and opportunities is also discussed.

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Microalgae are huge natural sources of high-value compounds with health-promoting properties. The carotenoids derived from microalgae have significant antioxidant and anti-inflammatory effects, which allow them to provide health benefits. In this article, the bioactivities of microalgal carotenoids are reviewed. Emphasis is placed on astaxanthin, a ketocarotenoid with extraordinary potential for protecting against a wide range of diseases.

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Fucoxanthin supplementation to NCD or HFD significantly reduced the bodyweight gain in mice likely through its capability to differentially modulate cecal and fecal microbiota based on diet.