Abstract
Chlorella vulgaris is a potential sustainable source of lipids, carotenoids, carbohydrates, and proteins, as it shows high biomass productivity and easy cultivation. Therefore, the aim of this work was to critically discuss the cultivation and characterization of C. vulgaris, and also the aspects related to the application of green extraction technologies for the recovery of valuable compounds from the algae biomass. As a novelty, this review provided insights concerning scientific trends on sequential extraction methods—biorefinery concepts, and to the use of surfactants as solvent modifiers. It was found that green methods such as Supercritical Fluid Extraction (SFE) with \({\mathrm{CO}}_{2}\) can recover 50% of Chlorella vulgaris-based lipids. It is worth noting that no data are available combining SFE with surfactants applied for microalgae extraction, except for the study on dewaxing of grey cotton fabric using SFE-CO2 with a surfactant as modifiers. On the other hand, surfactants were applied as modifieds in other green technologies, such as in the study of hydrothermal lipid-extraction from C. vulgaris, with a positive significant effect of the surfactants (sodium dodecyl benzene sulfonate and methylbenzenethonium chloride) on lipid-extraction yield. Therefore, the use of surfactants and biosurfactants as modifiers on green extraction methods should be deeper investigated, since it is technically and economically feaseble to implement for different extraction methods and can lead to higher yields, mostly with low restrictions of application from health to environment.
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Graphical abstract showing outcomes when pulping with wood ash solution.
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Abbreviations
- [Omim][OAc]:
-
1-Octyl-3-methylimidazolium acetate
- 2-MeTHF:
-
2-Methyltetrahydrofuran
- 3_DAPS:
-
3-(Decyldimethylammonio)-propanesulfonate
- ABTS:
-
2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid
- ALA:
-
Alpha-linolenic acid
- BBM:
-
Basal bold medium
- BG11:
-
Blue-green medium
- \({\mathrm{CO}}_{2}\) :
-
Carbon dioxide
- C. vulgaris :
-
Chlorella vulgaris
- CGF:
-
Chlorella growth factor
- CPME:
-
Cyclopentyl methyl ether
- CSHD:
-
Cationic surfactant-based harvesting and cell disruption
- CTAB:
-
Cetrimonium bromide
- DCM:
-
Dichloromethane:methanol
- DCW:
-
Dry cell weight
- DES:
-
Deep eutectic solvent
- DHA:
-
Docosahexaenoic acid
- DMSO:
-
Dimethyl sulfoxide
- DPPH:
-
Antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl
- DW:
-
Distilled water
- EPA:
-
Eicosapentaeonic acid
- EtOH:
-
Ethanol
- FAME:
-
Fatty acid methyl esters
- FRAP:
-
Ferric reducing antioxidant power
- GC–MS:
-
Gas chromatography–mass spectrometry
- GGE:
-
Gallons gasoline equivalent
- \({\mathrm{H}}_{2}\mathrm{O}\) :
-
Water
- His:
-
Histidine
- HLB:
-
Hydrophilic lipophilic balance
- HPLC:
-
High-performance liquid chromatography
- IL:
-
Ionic liquids
- kHz:
-
Kilohertz
- LBF:
-
Liquid biphasic flotation
- LC–MS:
-
Liquid chromatography–mass spectrometry
- Leu:
-
Leucine
- Lys:
-
Lysine
- MAE:
-
Microwave-assisted extraction
- MBC:
-
Methylbenzenethonium chloride
- MELs:
-
Mannosylerythritol lipids
- Met:
-
Methionine
- MTAB:
-
Myristyltrimethylammonium bromide
- MWTPP:
-
Microwave-assisted three phase partitioning
- N_LS:
-
N-lauroyIsarcosine sodium
- NL:
-
Neutral lipids
- NS:
-
Non-ionic surfactant
- NTP:
-
Nitrogen to protein
- O2 :
-
Oxigen
- OS:
-
Oligomeric surfactant
- OVAT:
-
One-variable-at-a-time
- Phe:
-
Phenylalanine
- PLE:
-
Pressurized liquid extraction
- POME:
-
Palm oil mill effluent
- PUFAs:
-
Polyunsaturated fatty acids
- PW:
-
Produced water
- Rpm:
-
Revolutions per minute
- SBDS:
-
Sodium dodecyl benzene sulfonate
- SDS:
-
Sodium dodecyl sulfate
- SFE:
-
Supercritical fluid extraction
- SFE-CO2 :
-
Supercritical fluid extraction with carbon dioxide
- STAC:
-
Stearyl trimethyl ammonium chloride
- TEAC:
-
Trolox equivalent antioxidant capacity
- Thr:
-
Threonine
- TPC:
-
Total phenolic content
- TPP:
-
Three phase partitioning
- Tyr:
-
Tyrosine
- UAE:
-
Ultrasound assisted extraction
- US:
-
Ultrasound
- Val:
-
Valine
- W:
-
Watts
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The authors acknowledge the financial support of Coordination for the Improvement of Higher Education Personnel (CAPES)—Institutional Program for Internationalization (PRINT), Project Numbers 88887.310560/2018-00 and 88887.310727/2018-00.
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GG: Conceptualization, Methodology, Software, Writing—Original Draft, Writing—Review & Editing; SRSF: Term, Supervision, Funding acquisition CJA: Term, Supervision, Funding acquisition.
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Hurtado, G.L.G., Ferreira, S.R.S. & de Andrade, C.J. A Critical Review on Chlorella vulgaris Deconstruction by Green Sequential Extractions: The Potential of (Bio)Surfactant Modifiers. Waste Biomass Valor 15, 525–542 (2024). https://doi.org/10.1007/s12649-023-02211-7
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DOI: https://doi.org/10.1007/s12649-023-02211-7