Effect of the carbon source on the carotenoid profiles of Phaffia rhodozyma strains |
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Authors: | M Vázquez V Santos J C Parajó |
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Institution: | (1) Department of Chemical Engineering, University of Vigo (Campus Orense), Faculty of Science, Las Lagunas, 32004 Orense, Spain, ES |
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Abstract: | Phaffia rhodozyma strains ATCC 24202, ATCC 24203, ATCC 24228, ATCC 24229, ATCC 24261, NRRL Y-10921, NRRL Y-10922 and NRRL Y-17268 were grown
on culture media containing glucose, sucrose or xylose as carbon sources. Carotenoids were extracted from biomass and analyzed
by HPLC with diode-array detection. The carotenoid profiles depended on both the strain considered and the carbon source
employed. Astaxanthin, the main pigment found in P. rhodozyma, accounted for 42–91% of total carotenoids. Other carotenoids such as canthaxanthin, echinenone, 3-hydroxyechinenone, lycopene,
4-hydroxy-3′, 4′-didehydro-β-ψ-carotene and phoenicoxanthin were detected. The highest volumetric carotenoid concentration (3.60 mg L−1) was obtained with strain NRRL Y-17268 growing on xylose. In this case, astaxanthin accounted for 82% of total carotenoids.
Received 29 May 1997/ Accepted in revised form 08 August 1997 |
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Keywords: | : carotenoid profile astaxanthin canthaxanthin Phaffia rhodozyma |
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