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Safe and Complete Extraction of Astaxanthin from Haematococcus pluvialis by Efficient Mechanical Disruption of Cyst Cell Wall.
- Source :
-
International Journal of Food Engineering . Oct2019, Vol. 15 Issue 9, pN.PAG-N.PAG. 16p. - Publication Year :
- 2019
-
Abstract
- Haematococcus pluvialis (H. pluvialis) can naturally accumulate high amounts of astaxanthin – a powerful antioxidant. However, complete recovery of astaxanthin from the cysts of H. pluvialis is challenging because of the presence of a robust acetolysis resistant cell wall. Herein, a simple and effective planetary ball-milling pretreatment was developed to rupture the cells to attain an almost complete recovery of astaxanthin from H. pluvialis, using a supercritical CO2 and conventional organic solvent-based extraction. An optimized pretreatment using planetary ball mill under very mild conditions (150 rpm, 60 min) allowed the recovery of 31.4 mg/g dry weight of astaxanthin from H. pluvialis, while slightly harsh milling (500 rpm) was found to be detrimental toward astaxanthin. The extracts in acetone exhibited higher antioxidant activity in 1-diphenyl-2-picrylhydrazyl assay than those in dichloromethane. These mild conditions were safe and highly effective for the complete extraction of astaxanthin along with the others extractables. This study opens a new avenue for the efficient recovery of valuable thermolabile ketocarotenoid species from microalgae, which can be applied to the development of economically viable biorefineries. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ASTAXANTHIN
*DICHLOROMETHANE
*BALL mills
*CELLS
Subjects
Details
- Language :
- English
- ISSN :
- 15563758
- Volume :
- 15
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- International Journal of Food Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 139353293
- Full Text :
- https://doi.org/10.1515/ijfe-2019-0128