Impact of Cultivation Condition and Media Content on Chlorella vulgaris Composition

Abstract

Microalgae are a source material in food, pharmacy, and cosmetics industries for producing various products including high-protein nutritional supplements, synthetic pharmaceuticals, and natural colors. A promising algal source for such productions is Chlorella vulgaris which contains a considerable protein content. Similar to other microalgae, its desirability is minimal nutrient requirements since they are unicellular, photosynthetic, and fast-growing microorganisms. Another propitious option to be produced by C. vulgaris is biodiesel, since it is rich in oil too. Besides, algal well thriving in presence of increased amount of carbon dioxide makes them a practicable alternative biofuel resource without some problems of the traditional ones. At the same time, C. vulgaris is also a promising source for nutraceuticals such as amino acids, vitamins, and antioxidants. This review aims to discuss the conditions need to be observed for achieving a favorable growth efficiency of the C. vulgaris, as well as targeted productions such as biomass, antioxidant, and biofuel. Additionally, different approaches to induce any specific production are also considered comprehensively.

Comparison of growth, protein and carotenoid contents of some freshwater microalgae and the effects of urea and cultivation in a photobioreactor with reflective broth circulation guide on Desmodesmus subspicatus LC172266

“…It is noteworthy that this trend in carotenoid accumulation differs from the widely reported stress-induced accumulation by many microalgae species (Koyande et al 2019 ; Novoveska et al 2019 ; Panahi et al 2019 ). A possible explanation to this trend of carotenoid accumulation might be that different regulatory mechanisms of carotenoid biosynthesis function in these species (Pribyl et al 2016 ).…”

“…Use of efficient photobioreactors to enhance growth rates and productivities (Huang et al 2017 ); and 3. Manipulation of cultivation conditions, which currently involves the use of stressed conditions as widely reported in literature (Koyande et al 2019 ; Mussagy et al 2018 ; Novoveska et al 2019 ; Panahi et al 2019 ). In terms of selection of species/strains for production of pigments, few microalgae species which include but not limited to Dunaliella sp., Porphydrium sp., and Spirulina sp.…”

The Growth Comparison of Haematococcus Pluvialis in Two Different Medium

“…Nitrogen is needed for the formation of protein (the building blocks of the cell) and nucleic acid, while phosphor (in the form of phosphate) is part of the backbone of DNA and RNA, which are genetic materials that essential for the human life (Juneja et al, 2013). Furthermore, research showed that the increase of nitrate (NO3) utilization would increase the protein content by up to 44.3% (Panahi et al, 2019). That is why the biomass production in Walne's is higher than in Guillard's medium due to the wide difference in N and P concentration.…”

Potential of Chlorella as a Dietary Supplement to Promote Human Health

“…Different growth conditions, such as temperature, nutrient composition, and light availability, can readily alter the levels of biomass, macro- and micronutrients, and other valuable bioactive compounds, including antioxidants, in Chlorella cells [ 28 , 29 , 30 ].…”