Recovery of chlorophylls from spent biomass of Arthrospira platensis obtained after extraction of phycobiliproteins.
Bioresour Technol
; 271: 391-401, 2019 Jan.
Article
en En
| MEDLINE
| ID: mdl-30296746
ABSTRACT
Extraction of chlorophylls has received scant attention or priority over phycobiliproteins from Arthrospira platensis. In fact extraction of chlorophylls from spent biomass (left after extraction of phycobiliproteins which goes as waste or underutilized) on drying, will improve the economics of the overall downstream processing. Ethanol (yield 5.75â¯mg/g, db), being a food grade solvent, was preferred over acetone and dimethyl sulfoxide in spite of their slightly better yields (5.85â¯mg/g, db). The best conditions were 100% concentration of ethanol, 18 S/L ratio, pH 6, 50⯰C temperature and 1â¯h extraction time. An increase of 125% in yield besides reduction of 83.3% in extraction time (from 6 to 1â¯h) could be achieved at standardized conditions. Low-Humidity drying was observed to be a possible alternative to freeze drying for drying of spent biomass. Ultrasonication as pre-treatment and ethanol as solvent were found effective for extraction of chlorophylls from dry spent biomass.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Clorofila
/
Biomasa
/
Spirulina
/
Ficobiliproteínas
Idioma:
En
Revista:
Bioresour Technol
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2019
Tipo del documento:
Article
País de afiliación:
India