A Critical Review on Nutrients Requirements, Morphology, Environmental Factors and Applications of Chlorella Vulgaris and Chlorella Zofingiensis

Document Type : Research Paper

Authors

Faculty of Civil, Water and Environmental Engineering, Shahid Beheshti University, Tehran, Iran

Abstract

Understanding the importance of microalgae in the health of humanity accelerate the progress in microalgae production through investigation and industrial production as an alternative for chemical and unhealthy productions. In this regard, green microalgae, Chlorella vulgaris and Chlorella zofingiensis have extensive applications representing their importance. Both chlorellae can be cultured in indoor environments and outdoors by remarkable adaption to the new altered condition. However, the growth rate is fast in three culture modes, including phototrophic, heterotrophic and mixotrophic. These robust biotechnological traits attract them more for researchers and engineers. There are some models and plans to increase the efficiency of products that, economically and technologically, must be feasible and plausible. In this study, we discussed investigations on scaling up the plants and their challenges. To cultivate and raise the growth rate of microalgae, knowledge of the nutrient requirements, the procedure of growth, and restrictions are necessary. Therefore, this study focused on comprehensive review about two widely-used and industrial applicable microalgae including Chlorella vulgaris and Chlorella zofingiensis. The differences and similarities in morphology, growth factors were assessed to help decision-makers and researches in this field.

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