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. 2008 Oct 6;8:169. doi: 10.1186/1471-2180-8-169

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Copyright © 2008 Alcaíno et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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RP-HPLC analysis of carotenoids from wild type (UCD 67–385, CBS-6983) and transformant (T13 (crtR^ΔBsiWI::hph/crtR⁺), CBSTr (crtR^ΔNdeI::hph)) strains. Numbers indicate different carotenoids as follows: 1: astaxanthin; 2: phoenicoxanthin; 3: canthaxanthin; 4: hydroxy-keto-γ-carotene; 5: keto-γ-carotene; 6: hydroxy-echinenone; 7: echinenone; 8: lycopene; 9: neurosporene; 10: γ-carotene and 11: β-carotene. In the upper right of the chromatogram, colony phenotype is shown.