Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass

Damergi, Eya; Schwitzguébel, Jean-Paul; Refardt, Dominik; Sharma, Shivom; Holliger, Christof; Ludwig, Christian

doi:10.1016/j.algal.2017.05.003

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass
Authors:	Damergi, Eya Schwitzguébel, Jean-Paul Refardt, Dominik Sharma, Shivom Holliger, Christof Ludwig, Christian
DOI:	10.1016/j.algal.2017.05.003
Published in:	Algal Research
Volume(Issue):	25
Page(s):	488
Pages to:	495
Issue Date:	2017
Publisher / Ed. Institution:	Elsevier
ISSN:	2211-9264
Language:	English
Subjects:	Microalgae; Extraction; Energy; Carotenoids
Subject (DDC):	660: Chemical engineering
Abstract:	A combined process for carotenoids extraction and efficient bioenergy recovery from the wet microalgae biomass is proposed. High added-value products could thus be extracted prior a hydrothermal gasification of the algal biomass into synthetic natural gas. The economic sustainability of biofuel production from algal biomass as well as the large energy demands of microalgae cultivation and harvesting is addressed in this paper. Two green solvents, ethanol and 2-methyltetrahydrofuran (MTHF), were used to achieve the maximum extractability of selected carotenoids. Pure MTHF was tested for the first time as an alternative renewable solvent for carotenoid extraction from wet biomass and promising results were obtained (30 min at 110 °C), with 45% of total carotenoids being extracted. The energy content of the residual biomass corresponds to a High Heating Value (HHV) of 18.1 MJ/kg. With a 1:1 mixture of both MTHF and ethanol, more carotenoids were extracted from wet biomass (66%) and the remaining HHV of the residual biomass was 15.7 MJ/kg. The perspectives of combined carotenoid extraction and energy recovery for a better microalgae valorization are discussed.
URI:	https://digitalcollection.zhaw.ch/handle/11475/1470
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	Life Sciences and Facility Management
Organisational Unit:	Institute of Natural Resource Sciences (IUNR)
Appears in collections:	Publikationen Life Sciences und Facility Management

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Damergi, E., Schwitzguébel, J.-P., Refardt, D., Sharma, S., Holliger, C., & Ludwig, C. (2017). Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass. Algal Research, 25, 488–495. https://doi.org/10.1016/j.algal.2017.05.003

Damergi, E. et al. (2017) ‘Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass’, Algal Research, 25, pp. 488–495. Available at: https://doi.org/10.1016/j.algal.2017.05.003.

E. Damergi, J.-P. Schwitzguébel, D. Refardt, S. Sharma, C. Holliger, and C. Ludwig, “Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass,” Algal Research, vol. 25, pp. 488–495, 2017, doi: 10.1016/j.algal.2017.05.003.

DAMERGI, Eya, Jean-Paul SCHWITZGUÉBEL, Dominik REFARDT, Shivom SHARMA, Christof HOLLIGER und Christian LUDWIG, 2017. Extraction of carotenoids from Chlorella vulgaris using green solvents and syngas production from residual biomass. Algal Research. 2017. Bd. 25, S. 488–495. DOI 10.1016/j.algal.2017.05.003

Damergi, Eya, Jean-Paul Schwitzguébel, Dominik Refardt, Shivom Sharma, Christof Holliger, and Christian Ludwig. 2017. “Extraction of Carotenoids from Chlorella Vulgaris Using Green Solvents and Syngas Production from Residual Biomass.” Algal Research 25: 488–95. https://doi.org/10.1016/j.algal.2017.05.003.

Damergi, Eya, et al. “Extraction of Carotenoids from Chlorella Vulgaris Using Green Solvents and Syngas Production from Residual Biomass.” Algal Research, vol. 25, 2017, pp. 488–95, https://doi.org/10.1016/j.algal.2017.05.003.