Profiling of carotenoids in six microalgae (Eustigmatophyceae) and assessment of their β-carotene productions in bubble column photobioreactor.
The profiles of carotenoids and production of β-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 β-carotene, violaxanthin and vaucheriaxanthin as their major carotenoids and accumulated large amount of β-carotene, which accounted for over 50 % of total carotenoids. Maximum intracellular β-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 β-carotene.
Institute of Hydrobiology, School of Life Science and Technology, Jinan University, Huangpu Avenue No. 601, Tianhe District, Guangzhou, China.
Zhen
Z
Li
Mingzhe
M
Sun
Qiyu
Q
Li
Aifen
A
Li
Chengwu
C
Zhang
D018533:Biomass; D001709:Biotechnology / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D007700:Kinetics; D058086:Microalgae / Q000737:chemistry / Q000378:metabolism*; D058433:Photobioreactors; D019207:beta Carotene / Q000032:analysis / Q000096:biosynthesis*
D019207:beta Carotene