Cultivo y composición bioquímica de diatomeas marinas (Bacillariophyta) de la Bahía de Santa Lucía, Acapulco, México

The biomass composition of Chlorella minutissima 26a was evaluated in different conditions for the microalgae cultured in landfill leachate in airlift photobioreactor operated in semi-continuous mode. The effects of the following factors in cells composition were evaluated: landfill leachate concentration (LC), CO2 percentual flow added in the gas stream (GP), aeration flow in the reactor (AF) and feed flowrate (FR). A Taguchi L9 orthogonal arrangement was used to evaluate the effects of those four factors on the following response variables: Biomass Productivity (BP), Lipid Productivity (LP), Carbohydrate Productivity (CP) and Proteins Productivity (PP). Results showed that the microalgae had high selectivity to produce proteins, reaching a maximum content of 69,60% in the following conditions: LC: 10%, GP: null, AF: 0,30 vvm and FR: 0.9 µmax vvm. The highest contents of lipid and carbohydrate were 17.4% (LC: 15%, GP: null, AF: 0,45 vvm and FR: 0.7 µmax vvm) and 11.6% (LC: 10%, GP: 15%, AF: 0,15 vvm and FR: 0.7 µmax vvm.), respectively, both values achieved at the two experiment with the highest values of specific growth rate (0.44 d-1 and 0.47 d-1, respectively). Statistical analysis showed LC was the most influential factor in the cell chemical composition, being significant (p<0,1) in the productivity of lipids, proteins and carbohydrates, with high values observed using between 5 and 10% of LC in the medium. GP did not show significance for any response studied, while the variables AF and FR showed significance in the productivity of proteins.

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From Past to Present: Biotechnology in Mexico Using Algae and Fungi

Valle

Scheckhuber

2021

Plants

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Algae and fungi share a rich history in the fields of basic and applied natural science. In biotechnology, in particular, algae and fungi are of paramount importance, due to the production and development of valuable compounds, such as pharmaceuticals, enzymes, and biofuels. They are also used in waste fermentation, biocontrol of pathogens, and food processing and improvement, among other fields. Although a substantial number of different microorganisms are utilized for these purposes, there lies tremendous potential in uncharacterized microbial species. For this reason, biodiversity hotspots offer a wealth of potential in the discovery of new products and processing strategies based on these microorganisms. This review presents an overview of the use of algae and fungi in pre-Hispanic times/modern-day Mexico for the benefits of mankind. One of our objectives is to raise awareness about the potential of developing research projects for identification and biotechnological utilization of algae and fungi in a megadiverse country, such as Mexico.

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Cultivo y composición bioquímica de diatomeas marinas (Bacillariophyta) de la Bahía de Santa Lucía, Acapulco, México

Cited by 3 publications

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Semi-continuous Cultivation of Chlorella minutissima in Landfill Leachate: Effect of Process Variables on Biomass Composition

Semi-continuous Cultivation of Chlorella minutissima in Landfill Leachate: Effect of Process Variables on Biomass Composition

Effects of Process Variables in Semi-continuous Cultivation of Chlorella Minutissima on the Biomass Composition

From Past to Present: Biotechnology in Mexico Using Algae and Fungi

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