Potential of Microalgal Bioproducts: General Perspectives and Main Challenges
2019
de Souza, Maiara P. | Hoeltz, Michele | Gressler, Pablo D. | Benitez, Lisianne B. | Schneider, Rosana C. S.
Microalgae have received considerable attention due to several applications in which they can be used, such as bioremediation and the production of high-value products. Microalgal biomass is known for its richness and variety of bioproducts such as lipids, carbohydrates, proteins, pigments and antioxidants. They can be used for several purposes, for example, in the production of biofuels, food nutrition (human and animal), pharmacology and cosmetology. However, despite the importance of these applications, there are still certain difficulties to produce microalgae bioproducts in large-scale. The high general cost of microalgal production is one of the major disadvantages, since cultivation, extraction and biorefining steps are necessary. Unfortunately, these processes are frequently not compensated by the final product sales price. The identification of the target compounds present in biomass as well as the costs involved in these steps are necessary to promote microalgal development for agricultural, commercial and industrial applications. To focus on the main aspects related to the bioproducts present in biomass, this review aims to demonstrate the main concepts regarding bioproducts and microalgae, the relevant data about the sectors of application, and the main challenges and perspectives associated with these subjects by using bibliometric mapping.
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