Biotechnological Assessment of Culture Conditions on the Stress-Induced Carotenoid Production of Dunaliella salina and Growth Kinetics of Chlorophyceae Microalgae Strains
Braz. arch. biol. technol
;
63: e20190204, 2020. tab, graf
Article
in English
| LILACS
| ID: biblio-1132263
ABSTRACT
Abstract Microalgae are potential sources of a wide range of bioproducts. It is essential to choose the proper microalgae strain and culture condition to achieve an efficient production. The production yield of carotenoids by Dunaliella salina under the stress-induced culture conditions of nitrogen deprivation and excessive light intensity was evaluated. Also, a survey at laboratorial scale of the growth kinetics under different culture conditions of photoperiod, aeration, and agitation was performed for the seven species of green microalgae Ankistrodesmus fusiformis, Chlamydocapsa bacillus, Desmodesmus brasiliensis, Kirchneriella lunaris, Pseudokirchneriella subcapitata, and Scenedesmus obliquus. As a result, aeration of atmospheric air is enough to improve the growth kinetics of the seven species studied. Production of carotenoids was enhanced under stress by excessive light intensity. Although D. salina does not grow effectively under nitrogen deprivation, this stress condition may be used to quickly stimulate carotenoid production once the culture reaches a high cellular population.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Carotenoids
/
Chlorophyceae
Language:
English
Journal:
Braz. arch. biol. technol
Journal subject:
Biology
Year:
2020
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal University of Bahia/BR
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