• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Photoinhibition and β-carotene production from Dunaliella sp. isolated from salt pans of Goa

    Thumbnail
    Date
    2025
    Author
    Joseph, S.
    Ramadoss, D.
    Chellandi, M.
    Metadata
    Show full item record
    Abstract
    The 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
    URI
    https://doi.org/10.1007/s13399-022-03327-x
    http://drs.nio.res.in/drs/handle/2264/9566
    Collections
    • Scholarly literature [9211]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV