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CO2 fixation and production of biodiesel by Chlorella vulgaris NIOCCV under mixotrophic cultivation. 2019

Deepti Jain, and Supriya S Ghonse, and Tanmay Trivedi, and Genevieve L Fernandes, and Larissa D Menezes, and Samir R Damare, and S S Mamatha, and Sanjay Kumar, and Vishal Gupta
Biological Oceanography Division, CSIR-National Institute of Oceanography, Goa 403004, India.

In this study, Chlorella vulgaris NIOCCV was cultivated in seafood processing industry wastewater with continuous supply of 5%, 10%, and 20% CO2. The optimum CO2 fixation efficiency ( [Formula: see text] ), biomass productivity, specific growth rate (SGR), and lipid content recorded were 0.43 mg L-1 d-1, 264.58 ± 8.8 mg L-1 d-1, 0.46 d-1, and 38 ± 2.6% on dry weight basis, respectively at CO2 supply of 10%. The fatty acid methyl ester-derived biodiesel properties determined at same condition were in compliance with national and international fuel standards. The higher calorific value (HHV) of the resultant biomass was 11.14, 16.41 and 12.83 MJ Kg-1 for CO2 enrichment of 5%, 10%, and 20%, respectively. The synergistic environmental benefit of nutrients removal from wastewater is shown as an additional advantage of microalgal cultivation. Thus, integration of algae-based CO2 fixation with wastewater treatment and biodiesel production may realize microalgal CO2 capture technology as environmentally sustainable and economically more attractive.

UI MeSH Term Description Entries
D008055 Lipids A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protoplasm, which are insoluble in water. They comprise the fats, fatty oils, essential oils, waxes, phospholipids, glycolipids, sulfolipids, aminolipids, chromolipids (lipochromes), and fatty acids. (Grant & Hackh's Chemical Dictionary, 5th ed) Lipid
D002245 Carbon Dioxide A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals. Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon
D005227 Fatty Acids Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed) Aliphatic Acid,Esterified Fatty Acid,Fatty Acid,Fatty Acids, Esterified,Fatty Acids, Saturated,Saturated Fatty Acid,Aliphatic Acids,Acid, Aliphatic,Acid, Esterified Fatty,Acid, Saturated Fatty,Esterified Fatty Acids,Fatty Acid, Esterified,Fatty Acid, Saturated,Saturated Fatty Acids
D048408 Chlorella vulgaris 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). Chlorella vulgari,vulgaris, Chlorella
D050356 Lipid Metabolism Physiological processes in biosynthesis (anabolism) and degradation (catabolism) of LIPIDS. Metabolism, Lipid
D056804 Biofuels Hydrocarbon-rich byproducts from the non-fossilized BIOMASS that are combusted to generate energy as opposed to fossilized hydrocarbon deposits (FOSSIL FUELS). Biodiesel,Biofuel,Biofuel Oils,Biogas,Biodiesels,Biofuel Oil,Oil, Biofuel,Oils, Biofuel
D058086 Microalgae A non-taxonomic term for unicellular microscopic algae which are found in both freshwater and marine environments. Some authors consider DIATOMS; CYANOBACTERIA; HAPTOPHYTA; and DINOFLAGELLATES as part of microalgae, even though they are not algae. Microphytes
D062065 Wastewater Contaminated water generated as a waste product of human activity. Waste Water,Waste Waters,Wastewaters,Water, Waste,Waters, Waste
D018533 Biomass Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop. Biomasses

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