ABSTRACT

In the twenty-first century, our society is looking for sustainable bio-based feedstocks to meet the demand of society and lessen dependency on fossil fuels. Microalgae are known as a promising renewable bio-resource that mitigates CO2 emissions and reduces nutrients from wastewaters for biomass. It simultaneously produces fuels, feed, and high-value co-products. Currently, different microalgal strains of Chlorella, Arthrospira, Spirulina, Dunaliella salina, Haematococcus pluvialis, and Schizochytrium are commercially explored for high-value health food and other co-products such as protein, carbohydrates, β‐carotene, astaxanthin, and long‐chain unsaturated fatty acids. These products have gained immense popularity in the nutraceutical and pharmaceutical companies and provide high revenues. This chapter discusses the various bio-products and bio-molecules produced from microalgae, along with their applications. In this chapter, we attempt to discuss the existing commercial-scale production of high-value bio-products and particular requirements and processing for the cultivation of microalgae. Commercial availability and significance of high-value co-products and its market sizes and future prospects are described in this chapter.