Abstract: This study showed that among stress factors, salinity has the greatest effect on accumulation of neutral lipids in microalgae strains that normally produce carbohydrates. Parachlorella kessleri IC-11 cultivation of autoclaved municipal wastewater with 30 g L−1 salt added revealed neutral lipids accumulation and increase in the total lipids content (up to 31.0 ± 1.8%). In saline wastewater P. kessleri IC-11 reduced COD by 11.46 ± 0.43%, while NH4+ was completely assimilated. PCA and PLS-DA analysis of its metabolism on BBM and wastewater revealed that the greatest contribution to the change in metabolism under salt stress was accomplished by a decrease in the following metabolites: adenylate (purine metabolism) on BBM medium and proline (arginine and proline metabolism) along with citric acid (citric acid cycle) on wastewater in stationary phase. Differences in metabolism during cultivation in both media should be taken into account when identifying potential target genes for metabolic engineering of lipid production in microalgae. © 2020 Elsevier Ltd

Cite: Sorokina K.N. , Samoylova Y.V. , Parmon V.N.
Comparative Analysis of Microalgae Metabolism on BBM and Municipal Wastewater During Salt Induced Lipid Accumulation
Bioresource Technology Reports. 2020. V.11. 100548 :1-12. DOI: 10.1016/j.biteb.2020.100548 Scopus РИНЦ OpenAlex

Dates:

Submitted:	Jul 23, 2020
Accepted:	Aug 22, 2020
Published online:	Aug 26, 2020
Published print:	Sep 1, 2020

Identifiers:

Scopus:	2-s2.0-85090284150
Elibrary:	45359588
OpenAlex:	W3081375482

Citing:

DB	Citing
Scopus	20
Elibrary	12
OpenAlex	23

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