Characterization of a new zeaxanthin producing strain of Chlorella saccharophila isolated from New Zealand marine waters.
Bioresour Technol
; 143: 308-14, 2013 Sep.
Article
em En
| MEDLINE
| ID: mdl-23811063
ABSTRACT
A fast growing strain of Chlorella saccharophila was isolated from the marine water of New Zealand and grown in heterotrophic conditions using glucose or glycerol as a carbon source. Biomass production was found to be higher in culture fed with glucose (2.14±0.08 g L(-1)) as compared to glycerol (0.378±0.04 g L(-1)). Lipid accumulation was similar for both carbon sources, at approximately 22% of dry cell weight. However, carotenoid yield was higher with glycerol (0.406±0.0125 mg g(-1)) than with glucose (0.21±0.034 mg g(-1)). Further optimization of the growth of the isolate gave maximal carotenoid production of 16.39±1.19 mg g(-1) total carotenoid, containing 11.32±0.64 mg g(-1) zeaxanthin and 5.07±0.55 mg g(-1) ß-carotene. Comparison of various chemical and physical carotenoid extraction methods showed that ultrasonication was required for maximum extraction yields. The new strain has potential for biofuel, with carotenoid co-production.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água do Mar
/
Chlorella
/
Xantofilas
País/Região como assunto:
Oceania
Idioma:
En
Revista:
Bioresour Technol
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Austrália