mixotrophic growth and lipids production by the green microalgae Chlorella sorokiniana ‘ published in the journal New Biotechnology, the experts present a new system that reduces the costs associated with the production of microalgae by including carbon sources from of agro-industrial waste. During the research, various industrial wastes have been used successfully as a carbon source, including carob bean extract, glycerol from biodiesel, and lees from oxidized wine residues. “This material comes from the solid part that remains in the tank or the barrel after fermentation. The results of our research show that, once oxidized, it is the ideal food for the microalgae Chlorella sorokiniana to grow more and produce more biomass ”,

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Rosa León, author of the article, tells the Discover Argentina Phone Number List Foundation. More biomass, lower cost One of the difficulties in creating biomass from microalgae in the culture tanks of these organisms, called photobioreactors, specifically in large volume ones, is that the supply of light is not produced in a homogeneous and efficient way due to the shielding that some cells exert on others. If the light does not fall on the microalgae, they do not photosynthesize and do not produce biomass. However, microalgae are mixotrophic organisms, that is, they are capable of feeding autonomously, like plants, or heteronomously, from bacteria or other sources of carbon or nitrogen. The study has focused on the combination of both to alleviate the shadow effect that occurs in

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large containers of microalgae. Thus, the researchers have shown, using reactors of different radii in their tubes, that the influence of effective light is less pronounced when C. sorokiniana is grown under mixotrophic conditions, that is, allowing them to feed autotrophically and heterotrophically simultaneously. “This microalgae is versatile and has a high biotechnological potential due to its ability to synthesize fatty acids of industrial interest, which grows very quickly, tolerates high temperatures and has shown the ability to survive in environments contaminated with metals”, indicates the researcher. However, to achieve economically feasible mixotrophic production, it is necessary to choose a cheap organic carbon source. “We have evaluated the

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