Publication de 4 numéros par an
ISSN Imprimer: 2572-9896
ISSN En ligne: 2572-990X
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COMPARATIVE STUDY ON BIOACTIVE COMPOUNDS OF PROSPECTIVE MICROALGAE FOR BIOFUEL PRODUCTION
RÉSUMÉ
Lipids from algae have numerous uses in the medical, food, and energy industries, especially as potential alternatives for fuel applications. In this study, three algae species of Chlorella, Oedogonium, and Tetradesmus were cultured and their bioactive compounds were identified. Each growth rate was distinctive and independent of the other. Compounds such as alkanoic acids, esters, alkanols, amines, amide, phenol, nitrogen-containing (azoxy) compounds, and saturated and unsaturated hydrocarbons were identified with varying composition, quality, and retention time. While 16 volatile compounds were identified in Chlorella sp., only 12 compounds were obtained in each of the Oedogonium and Tetradesmus species. Though the identified compounds in each of the algae were unique, hydrocarbons in saturated and unsaturated forms were predominant. In the Tetradesmus sp., both the unsaturated (62.91%) and saturated (6.08%) hydrocarbons added up to 68.99%, whereas other compounds such as esters (11.03%), alkanol (15.05%), amines (4.36%), and amides (0.56%) added up to 31.01%. While in the Chlorella sp., the unsaturated (84.8%) and saturated (0.38%) hydrocarbons added up to 85.18%, the other compounds−alkanoic acid (13.31%), alkanol (1.35%), thiol (0.08%), and azoxy (0.08%)−added up to 14.82%. Furthermore, in the Oedogonium sp., the hydrocarbons in both saturated (62.73%) and unsaturated (17.41%) forms gave a total of 80.14%, though the alkanoic acid (13.26%) and phenol (6.6%) added up to 19.86%. The predominance of hydrocarbons makes the algae species a highly suitable feedstock for biofuel production. For the first time, this study has shown that Tetradesmus sp. contains esters, amines, and amides which are suitable for drugs, cosmetics, and other applications.
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