Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/120421
Title: USE OF DUNALIELLA FOR CARBON DIOXIDE CAPTURE AND GLYCEROL PRODUCTION
Authors: NG HUI PING DAPHNE
Keywords: Dunaliella, glycerol, carbon dioxide, carbon capture, carbon sink
Issue Date: 12-Aug-2014
Citation: NG HUI PING DAPHNE (2014-08-12). USE OF DUNALIELLA FOR CARBON DIOXIDE CAPTURE AND GLYCEROL PRODUCTION. ScholarBank@NUS Repository.
Abstract: High concentrations of atmospheric carbon dioxide contribute to global warming. Hence, there is an urgent need to reduce atmospheric carbon dioxide levels. Dunaliella, a halotolerant unicellular green microalga, is a potential microalgal candidate for carbon dioxide capture with extracellular glycerol posing as a novel carbon sink. It was demonstrated that extracellular glycerol produced by D. tertiolecta functions as an extended and effective carbon sink. Carbon partitioning studies revealed that carbon channeling from a constant rate of carbon fixation is the predominant mechanism for glycerol synthesis in D. tertiolecta. Investigation of glycerol synthesis of D. tertiolecta revealed that intracellular glycerol accumulation in light-limited D. tertiolecta is determined by partitioning of glycerol across the cell membrane instead of de novo synthesis in response to salinity as in nitrogen-limited conditions. Over-expression of DtSBP in D. tertiolecta did not result in a significant increase in photosynthetic rate when compared to the wild-type.
URI: http://scholarbank.nus.edu.sg/handle/10635/120421
Appears in Collections:Ph.D Theses (Open)

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