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Algal Biofuels: Current Status and Key Challenges
Open accessAbstract
The current fossil fuel reserves are not sufficient to meet the increasing demand and very soon will become exhausted. Pollution, global warming, and inflated oil prices have led the quest for renewable energy sources. Algal biofuels represent a potential source of renewable energy. Algae, as the third generation feedstock, are suitable for biodiesel and bioethanol production due to their quick growth, excellent biomass yield, and high lipid and carbohydrate contents. With their huge potential, algae are expected to surpass the first and second generation feedstocks. Only a few thousand algal species have been investigated as possible biofuel sources, and none of them was ideal. This review summarizes the current status of algal biofuels, important steps of algal biofuel production, and the major commercial production challenges.
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In the citing paper
“However, because the production of this biodiesel is an energy-intensive process, the price of biodiesel is high.”
From The Perspective of Large-Scale Production of Algae Biodiesel (2020) · cites this paper as [9]
In the citing paper
“Most species of algae favor the temperature from 20 to 30 • C [9].”
From The Perspective of Large-Scale Production of Algae Biodiesel (2020) · cites this paper as [9]
In the citing paper
“Obtaining biodiesel from algae is technically feasible and sustainable, thus putting this technology in an excellent position to potentially and methodically replace oil-derived fuel [9].”
From The Perspective of Large-Scale Production of Algae Biodiesel (2020) · cites this paper as [9]
In the citing paper
“Other disadvantages include difficulties with scaling-up, overheating, oxygen accumulation, bio-fouling, and cell damage over time [9].”
From The Perspective of Large-Scale Production of Algae Biodiesel (2020) · cites this paper as [9]
In the citing paper
“Microalgae are also known to have high oil yields in comparison with other biofuel feedstock crops like palm oil and soybeans [1,2].”
From Factors Affecting Microalgae Production for Biofuels and the Potentials of Chemometric Methods in Assessing and Optimizing Productivity (2019) · cites this paper as [2]
In the citing paper
“Microalgae have been identified to be suitable for biofuels production, due to their high lipid contents.”
From Factors Affecting Microalgae Production for Biofuels and the Potentials of Chemometric Methods in Assessing and Optimizing Productivity (2019) · cites this paper as [2]
In the citing paper
“Energy storage capacity of microalgae is also known to relate directly to the lipids content, with C12 to C18 chain lengths being the key ones [2,71].”
From Factors Affecting Microalgae Production for Biofuels and the Potentials of Chemometric Methods in Assessing and Optimizing Productivity (2019) · cites this paper as [2]
In the citing paper
“Several factors affect the optimum growth and lipid accumulation of microalgae in controlled systems, including temperature, pH and the availability and concentration of macro- and micro-nutrients [2].”
From Factors Affecting Microalgae Production for Biofuels and the Potentials of Chemometric Methods in Assessing and Optimizing Productivity (2019) · cites this paper as [2]
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Metadata
- Authors
- Saad, M. G., Dosoky, N. S., Zoromba, M. S., & Shafik, H. M.
- Affiliations
- Port Said University (EG)
- University of Alabama in Huntsville (US)
- King Abdulaziz University (SA)
- Corresponding author
- Dosoky, Noura S.
- Venue
- Energies
- Publisher
- MDPI AG
- Published
- 2019-05-20
- Volume
- 12
- Issue
- 10
- Pages
- 1920
- ISSN
- 1996-1073 (ISSN-L)
- OpenAlex
- W2946429741
- Cited by
- 218
- References
- 174
- Citations by year
- 2026: 14 · 2025: 29 · 2024: 22 · 2023: 39 · 2022: 42 · 2021: 42 · 2020: 25 · 2019: 5
- FWCI
- 6.07
- Type
- journal article
- Language
- en
- Open access
- gold
- dx.doi.org
- Licence
- Locations
- Energies (publishedVersion, cc-by)
- RePEc: Research Papers in Economics (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Greater South Information System
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Keywords
- algal biofuels, microalgae, biodiesel, bioethanol, third-generation biofuels, algal biomass, lipid content, carbohydrate content, renewable energy, commercialization challenges, algae cultivation
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