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Characterization of a new zeaxanthin producing strain of Chlorella saccharophila isolated from New Zealand marine waters.

Authors :
Singh D
Puri M
Wilkens S
Mathur AS
Tuli DK
Barrow CJ
Source :
Bioresource technology [Bioresour Technol] 2013 Sep; Vol. 143, pp. 308-14. Date of Electronic Publication: 2013 Jun 07.
Publication Year :
2013

Abstract

A fast growing strain of Chlorella saccharophila was isolated from the marine water of New Zealand and grown in heterotrophic conditions using glucose or glycerol as a carbon source. Biomass production was found to be higher in culture fed with glucose (2.14±0.08 g L(-1)) as compared to glycerol (0.378±0.04 g L(-1)). Lipid accumulation was similar for both carbon sources, at approximately 22% of dry cell weight. However, carotenoid yield was higher with glycerol (0.406±0.0125 mg g(-1)) than with glucose (0.21±0.034 mg g(-1)). Further optimization of the growth of the isolate gave maximal carotenoid production of 16.39±1.19 mg g(-1) total carotenoid, containing 11.32±0.64 mg g(-1) zeaxanthin and 5.07±0.55 mg g(-1) β-carotene. Comparison of various chemical and physical carotenoid extraction methods showed that ultrasonication was required for maximum extraction yields. The new strain has potential for biofuel, with carotenoid co-production.<br /> (Crown Copyright © 2013. Published by Elsevier Ltd. All rights reserved.)

Details

Language :
English
ISSN :
1873-2976
Volume :
143
Database :
MEDLINE
Journal :
Bioresource technology
Publication Type :
Academic Journal
Accession number :
23811063
Full Text :
https://doi.org/10.1016/j.biortech.2013.06.006