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The aim of this study was to evaluate the influence of different carbon dioxide (CO ) concentrations on the distribution of carbon forms in the culture medium and the biomass production and biomolecules productivity of the strain Chlorella fusca LEB 111. In this study, experiments were carried out in which C. fusca cultures were exposed to different CO concentrations, 0.03% (0.08 mL mL d ), 5% (0.18 mL mL d ) and 15% v v CO (0.54 mL mL d ). Among the carbon chemical species distributions in the culture medium, bicarbonate was predominant (94.2 - 98.9%), with the highest quantitative percentage in the experiment receiving a 15% CO injection. C. fusca LEB 111 cultivated with 15% CO showed the highest biomass productivity (194.3 mg L d ) and CO fixation rate (390.9 mg L d ). The carbohydrate productivity in the culture that received 15% CO was 46.2% higher than the value verified for the culture with the addition of CO from the air (0.03% CO ). In addition, CO concentration providing increases of 0.03 to 15% to C. fusca cultures resulted in a 31.6% increase in the lipid productivity. These results showed that C. fusca can be used for CO bioconversion and for producing biomass with potential applications for biofuels and bioproducts. This article is protected by copyright. All rights reserved.
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Name: Biotechnology progress
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Nonmotile unicellular green algae potentially valuable as a source of high-grade protein and B-complex vitamins.
A species of green microalgae in the family Chlorellaceae. It is used as a model organism for PHOTOSYNTHESIS, and as a food supplement (DIETARY SUPPLEMENTS).
A biosensing technique in which biomolecules capable of binding to specific analytes or ligands are first immobilized on one side of a metallic film. Light is then focused on the opposite side of the film to excite the surface plasmons, that is, the oscillations of free electrons propagating along the film's surface. The refractive index of light reflecting off this surface is measured. When the immobilized biomolecules are bound by their ligands, an alteration in surface plasmons on the opposite side of the film is created which is directly proportional to the change in bound, or adsorbed, mass. Binding is measured by changes in the refractive index. The technique is used to study biomolecular interactions, such as antigen-antibody binding.
A genus of achlorophyllic algae in the family Chlorellaceae, and closely related to CHLORELLA. It is found in decayed matter; WATER; SEWAGE; and SOIL; and produces cutaneous and disseminated infections in various VERTEBRATES including humans.
A technique that uses LASERS to trap, image, and manipulate small objects (biomolecules, supramolecular assembles, DENDRIMERS) in three dimensional space. (From Glossary of Biotechnology and Nanobiotechnology Terms, 4th ed.)