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dc.contributor.authorJoseph, S.
dc.contributor.authorRamadoss, D.
dc.contributor.authorChellandi, M.
dc.date.accessioned2025-12-04
dc.date.accessioned2025-12-04T09:19:49Z
dc.date.available2025-10-01
dc.date.available2025-12-04T09:19:49Z
dc.date.issued2025
dc.identifier.citationBiomass Conversion and Biorefinery, Vol.15(20),2025;pp.27029- 27042
dc.identifier.issn2190-6823
dc.identifier.otherhttps://link.springer.com/article/10.1007/s13399-022-03327-x#citeas
dc.identifier.urihttps://doi.org/10.1007/s13399-022-03327-x
dc.identifier.urihttp://drs.nio.res.in/drs/handle/2264/9566
dc.descriptionIF2024=4.1
dc.description.abstractThe microalgae Dunaliella is a commercially viable species and is well known for its extreme environmental tolerance and ?-carotene production under stressful conditions. We examined the effect of salinity and light intensity on the growth and ?-carotene production, respectively, in two different species of Dunaliella: Dunaliella sp. and D. salina, isolated from the salt pans of Goa. Both the species were cultured in growth media with different salinity levels to establish the optimum salinity favouring maximum cell growth. Thereafter, the cells were cultured under optimum NaCl concentration, exposed to a range of light intensity and monitored for ?-carotene production. The two species, identified based on their molecular characteristics, displayed a significant difference in growth and ?-carotene production. Both D. salina and Dunaliella sp. achieved a maximum of 11.82? ?106 cells mL?1 (0.613 d?1) and 18.76? ?106 cells mL?1 (0.731 d?1) at 0.75 M and 0.5 M salinity, respectively. D. salina accumulated a large amount of total carotenoid (36.95 pg. cell?1) when cultured at 0.75 M salinity and exposed to high light intensity (1000 mol m?2 S?1). In contrast, the carotenoid content per cell was low in Dunaliella sp. (3.07 pg. cell?1) when cultured under optimal salinity (0.5 M) and high light intensity, indicating photoinhibition. We found that different Dunaliella species exhibit different photo-physiological properties that need further evaluation to identify the right candidate for industrial applications
dc.languageen
dc.publisherSpringer
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titlePhotoinhibition and β-carotene production from Dunaliella sp. isolated from salt pans of Goa
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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