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Profiling of carotenoids and antioxidant capacity of microalgae from subtropical coastal and brackish waters

Ahmed, Faruq and Fanning, Kent and Netzel, Michael and Turner, Warwick and Li, Yan and Schenk, Peer M. (2014) Profiling of carotenoids and antioxidant capacity of microalgae from subtropical coastal and brackish waters. Food Chemistry . ISSN 0308-8146

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Article Link(s): http://dx.doi.org/10.1016/j.foodchem.2014.05.107

Publisher URL: http://www.sciencedirect.com/science/article/pii/S0308814614008231

Abstract

Carotenoids are associated with various health benefits, such as prevention of age-related macular degeneration, cataract, certain cancers, rheumatoid arthritis, muscular dystrophy and cardiovascular problems. As microalgae contain considerable amounts of carotenoids, there is a need to find species with high carotenoid content. Out of hundreds of Australian isolates, twelve microalgal species were screened for carotenoid profiles, carotenoid productivity, and in vitro antioxidant capacity (total phenolic content (TPC) and ORAC). The top four carotenoid producers at 4.68-6.88 mg/g dry weight (DW) were Dunaliella salina, Tetraselmis suecica, Isochrysis galbana, and Pavlova salina. TPC was low, with D. salina possessing the highest TPC (1.54 mg Gallic Acid Equivalents/g DW) and ORAC (577 μmol Trolox Equivalents/g DW). Results indicate that T. suecica, D. salina, P. salina and I. galbana could be further developed for commercial carotenoid production.

Item Type:Article
Business groups:Crop and Food Science
Keywords:Carotenoids Microalgae Antioxidant capacity ORAC Total phenolics
Subjects:Science > Biology > Biochemistry
Deposited On:23 Jun 2014 04:40
Last Modified:09 Oct 2014 02:50

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