Journal
BIOTECHNOLOGY LETTERS
Volume 34, Issue 11, Pages 2049-2053Publisher
SPRINGER
DOI: 10.1007/s10529-012-0996-2
Keywords
beta-Carotene; Carotenoid; Eustigmatophyceae; Microalgae; Photobioreactor
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Funding
- National Natural Science Foundation of China [21311057, 31170337]
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The profiles of carotenoids and production of beta-carotene by six eustigmatophytes, Eustigmatos magnus, Eustigmatos polyphem, Eustigmatos vischeri, Vischeria helvetica, Vischeria punctata and Vischeria stellata, grown in a bubble column photobioreactor were measured. All eustigmatophytes contained beta-carotene, violaxanthin and vaucheriaxanthin as their major carotenoids and accumulated large amount of beta-carotene, which accounted for over 50 % of total carotenoids. Maximum intracellular beta-carotene contents ranged 1.5-3.5 % of dry wt and in V. stellata it reached 5.9 % dry wt, accompanied by a biomass dry wt >7.3 g/l, with the highest up to 9.8 g/l. These eustigmatophytes are thus promising producers of beta-carotene.
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