Gravimetric Enrichment of High Lipid and Starch Accumulating Microalgae
Abstract
This study presents gravimetric enrichment of mixed culture to screen starch and lipid producing species separately in a sequencing batch reactor. In the enriched starch-producing mixed culture photobioreactor, the starch content at the end of steady state batch became 3.42 times the beginning of depletion. Whereas in the enriched lipid-producing photobioreactor, the lipid content at the end of steady state batch became 3 times the beginning of famine phase. The obtained results revealed that the gravimetric enrichment is a suitable screening method for specific production of storage compounds in none-sterile large-scaled condition.
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Microalgae cultivated in improved photobioreactors have achieved nearly threefold increases in biomass and lipid accumulation.
“In fact, studies have reported that microalgae cultivated in these improved PBRs have achieved nearly threefold increases in biomass and lipid accumulation [174].”
From Microalgae biofuels: illuminating the path to a sustainable future amidst challenges and opportunities (2024) · cites this paper as [174]
Mixed-culture systems, where multiple species are cultivated together, are being explored to address monoculture issues.
“To address these issues, researchers are exploring mixed-culture systems, where multiple species are cultivated together [125,126].”
From A Review of Algae-Based Carbon Capture, Utilization, and Storage (Algae-Based CCUS) (2024) · cites this paper as [126]
Hassanpour et al. used mixed-culture systems to simultaneously capture CO2 and produce various types of biomass, enhancing economic efficiency and productivity.
“To fully leverage the advantages of mixed-culture systems in large-scale production, Hassanpour et al. utilized such systems to simultaneously capture CO 2 and produce various types of biomass, enhancing the economic efficiency and productivity of biomass production [126].”
From A Review of Algae-Based Carbon Capture, Utilization, and Storage (Algae-Based CCUS) (2024) · cites this paper as [126]
Gravity enrichment method can cultivate lipid-rich and carbohydrate-rich algae based on cell density differences, enhancing large-scale production of algae with different storage compounds.
“Specifically, they employed a gravity enrichment method to cultivate lipid-rich and carbohydrate-rich algae based on their cell density differences.The less dense lipid-rich algae float on the surface of the culture medium, while the denser starchrich algae settle at the bottom.This simple, flexible, and cost-effective method enhances large-scale production of algae with different storage”
From A Review of Algae-Based Carbon Capture, Utilization, and Storage (Algae-Based CCUS) (2024) · cites this paper as [126]
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- Authors
- Hassanpour, M., Abbasabadi, M., Ebrahimi, S., Hosseini, M., & Sheikhbaglou, A.
- Affiliations
- Sahand University of Technology (IR)
- Corresponding author
- Ebrahimi, Sirous
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2015-11
- Volume
- 196
- Pages
- 17-21
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W1003573624
- Cited by
- 31
- References
- 24
- Citations by year
- 2026: 1 · 2025: 5 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 4 · 2020: 3 · 2019: 2 · 2018: 5 · 2017: 3 · 2016: 1
- FWCI
- 0.89
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
- Keywords
- microalgae, starch accumulation, lipid accumulation, mixed culture, photobioreactors, sequencing batch reactor
- MeSH terms
- Biotechnology, Lipids, Nitrogen, Proteins, Starch, Microalgae, Photobioreactors, Batch Cell Culture Techniques
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