Pigment production by a new thermotolerant microalga Coelastrella sp. F50.
Food Chem
; 138(4): 2071-8, 2013 Jun 15.
Article
en En
| MEDLINE
| ID: mdl-23497860
ABSTRACT
Microalgae are good crops to produce natural pigments because of their high growth rates. Tropical zones are better locations than temperate areas for microalgal cultivation because they have longer duration of daylight and more stable temperatures throughout the year, but the high temperatures pose a challenge to microalgal cultivation. A newly isolated thermotolerant microalga produces reddish pigments under environmental stress. Morphological and molecular evidence including meridional ribs on the cell wall, pigment production, and its 18S rDNA sequence suggests that this microalga belongs to the genus Coelastrella. Salt stress and high light intensity accelerated biosynthesis of the pigments, and significant quantities of oil accumulated as the cells experienced stress due to nutrient deficiency. This microalga could withstand temperature of 50°C for more than 8h, which is a necessary trait for outdoor cultivation in tropical areas. The pigments contain astaxanthin, lutein, canthaxanthin, and ß-carotene as analysed by using HPLC.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Pigmentos Biológicos
/
Chlorophyta
/
Microalgas
Idioma:
En
Revista:
Food Chem
Año:
2013
Tipo del documento:
Article
País de afiliación:
Taiwán