Effects of harvesting on morphological and biochemical characteristics of microalgal biomass harvested by polyacrylamide addition, pH-induced flocculation, and centrifugation.
- Publisher:
- Elsevier
- Publication Type:
- Journal Article
- Citation:
- Bioresource Technology, 2022, 359, pp. 1-10
- Issue Date:
- 2022-09
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Effects of harvesting on morphological and biochemical characteristics of microalgal biomass harvested by polyacrylamide addition, pH-induced flocculation, and centrifugation..pdf | Accepted version | 1.56 MB | Adobe PDF |
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Full metadata record
Field | Value | Language |
---|---|---|
dc.contributor.author |
Kuzhiumparambil, U |
|
dc.contributor.author |
Labeeuw, L |
|
dc.contributor.author |
Commault, A |
|
dc.contributor.author | Vu, HP | |
dc.contributor.author | Nguyen, LN | |
dc.contributor.author | Ralph, PJ | |
dc.contributor.author | Nghiem, LD | |
dc.date.accessioned | 2022-12-02T00:15:06Z | |
dc.date.available | 2022-06-03 | |
dc.date.available | 2022-12-02T00:15:06Z | |
dc.date.issued | 2022-09 | |
dc.identifier.citation | Bioresource Technology, 2022, 359, pp. 1-10 | |
dc.identifier.issn | 0960-8524 | |
dc.identifier.issn | 1873-2976 | |
dc.identifier.uri | http://hdl.handle.net/10453/164026 | |
dc.description.abstract | The effects of microalgae harvesting methods on microalgal biomass quality were evaluated using three species namely the freshwater green alga Chlorella vulgaris, marine red alga Porphyridium purpureum and marine diatom Phaeodactylum tricornutum. Harvesting efficiencies of polyacrylamide addition, alkaline addition, and centrifugation ranged from 85 to 95, 59-92 and 100%, respectively, across these species. Morphology of the harvested cells (i.e. compromised cell walls) was significantly impacted by alkaline pH-induced flocculation for all three species. Over 50% of C. vulgaris cells were compromised with alkaline pH compared to < 10% with polyacrylamide and centrifugation. The metabolic profiles varied depending on harvesting methods. Species-specific decrease of certain metabolites was observed. These results suggest that the method of harvest can alter the metabolic profile of the biomass amongst the three harvesting methods, polyacrylamide addition showed higher harvesting efficiency with less compromised cells and higher retention of industry important biochemicals. | |
dc.format | Print-Electronic | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.relation | University of Technology SydneyN/A | |
dc.relation.ispartof | Bioresource Technology | |
dc.relation.isbasedon | 10.1016/j.biortech.2022.127433 | |
dc.rights | info:eu-repo/semantics/embargoedAccess | |
dc.subject.classification | Biotechnology | |
dc.subject.mesh | Acrylic Resins | |
dc.subject.mesh | Biomass | |
dc.subject.mesh | Centrifugation | |
dc.subject.mesh | Chlorella vulgaris | |
dc.subject.mesh | Diatoms | |
dc.subject.mesh | Flocculation | |
dc.subject.mesh | Hydrogen-Ion Concentration | |
dc.subject.mesh | Microalgae | |
dc.subject.mesh | Acrylic Resins | |
dc.subject.mesh | Biomass | |
dc.subject.mesh | Centrifugation | |
dc.subject.mesh | Chlorella vulgaris | |
dc.subject.mesh | Diatoms | |
dc.subject.mesh | Flocculation | |
dc.subject.mesh | Hydrogen-Ion Concentration | |
dc.subject.mesh | Microalgae | |
dc.subject.mesh | Chlorella vulgaris | |
dc.subject.mesh | Diatoms | |
dc.subject.mesh | Acrylic Resins | |
dc.subject.mesh | Centrifugation | |
dc.subject.mesh | Biomass | |
dc.subject.mesh | Hydrogen-Ion Concentration | |
dc.subject.mesh | Flocculation | |
dc.subject.mesh | Microalgae | |
dc.title | Effects of harvesting on morphological and biochemical characteristics of microalgal biomass harvested by polyacrylamide addition, pH-induced flocculation, and centrifugation. | |
dc.type | Journal Article | |
utslib.citation.volume | 359 | |
utslib.location.activity | England | |
pubs.organisational-group | /University of Technology Sydney | |
pubs.organisational-group | /University of Technology Sydney/Faculty of Engineering and Information Technology | |
pubs.organisational-group | /University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering | |
pubs.organisational-group | /University of Technology Sydney/Faculty of Science | |
pubs.organisational-group | /University of Technology Sydney/Strength - C3 - Climate Change Cluster | |
pubs.organisational-group | /University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment | |
utslib.copyright.status | embargoed | * |
pubs.consider-herdc | false | |
utslib.copyright.embargo | 2024-09-01T00:00:00+1000Z | |
dc.date.updated | 2022-12-02T00:15:04Z | |
pubs.publication-status | Published | |
pubs.volume | 359 |
Abstract:
The effects of microalgae harvesting methods on microalgal biomass quality were evaluated using three species namely the freshwater green alga Chlorella vulgaris, marine red alga Porphyridium purpureum and marine diatom Phaeodactylum tricornutum. Harvesting efficiencies of polyacrylamide addition, alkaline addition, and centrifugation ranged from 85 to 95, 59-92 and 100%, respectively, across these species. Morphology of the harvested cells (i.e. compromised cell walls) was significantly impacted by alkaline pH-induced flocculation for all three species. Over 50% of C. vulgaris cells were compromised with alkaline pH compared to < 10% with polyacrylamide and centrifugation. The metabolic profiles varied depending on harvesting methods. Species-specific decrease of certain metabolites was observed. These results suggest that the method of harvest can alter the metabolic profile of the biomass amongst the three harvesting methods, polyacrylamide addition showed higher harvesting efficiency with less compromised cells and higher retention of industry important biochemicals.
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