Microalgae Dunaliella salina

Hejazi, M.A. et al.. Selective extraction of carotenoids from the microalga Dunaliella salina with retention of viability, Biotechnol Bioeng., 79, 29, 2002. 

Hejazi, M.A., Holwerda, E., and Wijffels, R.H., Milking microalga Dunaliella salina for P-carotene production in two-phase bioreactors, Biotechnol Bioeng., 85, 475, 2004. 

Besson, A, and Guiraud, P. (2013) High-pH-induced flocculation-flotation of the hypersaline microalga Dunaliella salina. Bioresour. Technol., 147, 464-470. 

Other applications — P-carotene is used in various pet foods as both a colorant and a precursor to vitamin A. It can be applied to an array of animal foods designed for dogs, cats, fish, and birds. The antioxidant and precursory vitamin A properties increase the appeal and application of P-carotene in pet foods. Additionally, P-carotene is an important carotenoid that may assist in improving the color of birds, fish, and crustaceans. Dunaliella salina can serve as a source of algal feed for fish and crustaceans. The microalgae provide carotenoids that are essential for flesh coloring, particularly of salmon and crustaceans. 

The green microalga Dunaliella tertiolecta is attracted to ammonium and to several amino acids104 105 (Table 12.2). Calcium is required for full development of the response,104 and neither nitrate, urea, other amino acids, phosphate, vitamins, nor sugars elicit significant responses.105 Chemoattraction in a second species, D. salina, has been reported to several amino acids... 

In a previous work, we studied the possibility of extracting antioxidants from microalgae Spirulina platensis using ASE with different solvents (33-34). Likewise, other authors have studied the carotenoids extraction from microalgae Haematococcus pluvialis and Dunaliella salina using ethanol as solvent and ASE (35). 

Figure 6.5 Dunaliella salina farms located in Hutt Lagoon, Australia (Orchard, 2009). The ponds are pink due to the beta-carotene produced by the microalgae. Photo taken by Samuel Orchard. Reproduced from http //commons.wikimedia.org/wiki/FUe Hutt Lagoon, Western Australia.jpg...

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