Carotenoid accumulation in Haematococcus pluvialis in mixotrophic growth

Authors
Orosa, M Franqueira, D Cid, A Abalde, J
Citation
M. Orosa et al., Carotenoid accumulation in Haematococcus pluvialis in mixotrophic growth, BIOTECH LET, 23(5), 2001, pp. 373-378
Citations number
20
Categorie Soggetti
Biotecnology & Applied Microbiology",Microbiology
Journal title
BIOTECHNOLOGY LETTERS
ISSN journal
01415492 → ACNP
Volume
23
Issue
5
Year of publication
2001
Pages
373 - 378
Database
ISI
SICI code
0141-5492(200103)23:5<373:CAIHPI>2.0.ZU;2-L
Abstract
The microalga Haematococcus pluvialis was cultured with NaNO3 from 0 to 1 g l(-1) and optimal growth was obtained at 0.15 g l(-1). Sodium acetate and malonate (from 0 to 2% w/v) enhanced the accumulation of astaxanthin three and five times higher, respectively, than in autotrophic control cultures. However, high concentration of those compounds strongly inhibited growth. T he ratio chlorophyll a/total carotenoids was a good indicator of the extent of nitrogen deficiency in the cells.