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Open research questions in Algal biology and biofuel production

629 gap statements mined from Algal biology and biofuel production papers in our 7.9M-paper local library, which holds 3,120 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • There is a need to explore the potential of red microalgae as a functional food source. The nutritional and health benefits of red microalgae are not well understood. The antifungal, antibacterial, and anti-allergic properties of red microalgae need to be further studied.

    Leveraging red microalgae as a potential functional food source: a comprehensive review · 2026 · DOI

  • Limited understanding of the tolerance and biodegradation capacity of microalgal species to phenolic compounds. Need to identify effective bioremediation strategies for phenolic pollutants in aquatic environments.

    Effect Produced by a Mixture of Phenol, p-Cresol, and Acetophenone on Four Species of Microalgae: Tolerance, Biodegradation, and Metabolic Alterations · 2025 · DOI

  • The paper identifies the need for rapid and accurate monitoring of aquatic environments affected by phytoplankton. It highlights the importance of developing new devices based on spectroscopic techniques for this purpose. The study also notes the challenge of phytoplankton undergoing various physiological changes throughout their life cycle, leading to alterations in their optical properties.

    Integration of Fluorescence Spectroscopy into a Photobioreactor for the Monitoring of Cyanobacteria · 2025 · DOI

  • The gap in the literature is the lack of studies on the use of desalination concentrate for microalgae cultivation. There is a need to evaluate the effects of desalination concentrate on microalgae cultures. The study aims to fill this gap by investigating the use of desalination concentrate for Spirulina sp. LEB 18 cultivation.

    Recirculation of Saline Concentrate in Spirulina Cultivation: A Promising Strategy for High Production of Biomass and Biomolecules in Semiarid Regions · 2025 · DOI

  • Further research is needed to develop efficient biological CO2 sequestration methods. Screening microalgae strains for biotechnological applications in biosequestration is necessary. Investigating the unique enzymatic systems of microalgae strains could provide insights into their adaptive responses.

    Carbon Dioxide Bio-Capture and Organic Carbon Production in Two Microalgae Strains Grown Under Different CO2 Conditions · 2025 · DOI

  • The need for efficient biological CO2 sequestration methods. The lack of understanding of microalgae strains' CO2 assimilation efficiency under different CO2 conditions.

    Carbon Dioxide Bio-Capture and Organic Carbon Production in Two Microalgae Strains Grown Under Different CO2 Conditions · 2025 · DOI

  • The lack of selective and environmentally friendly processes for the co-purification of cellulose and chitin polymers from microalgae. The need for more sustainable production methods for these polymers. The potential of microalgae as a feedstock for these polymers.

    Purification of Cellulose and Chitin Polymers and Other Value-Added Products from the Microalga Chlorella vulgaris Using a Green Biorefinery Process · 2025 · DOI

  • The need to optimize magnetic field exposure conditions for enhanced carotenoid production and biochemical composition. The challenge of scaling up the cultivation process for industrial applications. The potential effects of magnetic field exposure on cell structure and metabolism.

    Carotenoid Production by Dunaliella salina with Magnetic Field Application · 2025 · DOI

  • Limited research on preharvest bioprocessing strategies to improve Spirulina's nutritional value and sensory quality. Most research focuses on postharvest processing technologies. A need for a sustainable approach to develop spirulina-based functional foods.

    Enhancing Nutritional Value and Sensory Quality of Spirulina (Arthrospira platensis) Through Preharvest Co-Cultivation with Yeast Saccharomyces cerevisiae · 2025 · DOI

  • There is a need for sustainable practices grounded in bioeconomic principles to mitigate environmental impacts. The potential of microalgae as a tool for mitigating industrial CO2 emissions has not been fully explored.

    Integrated System of Microalgae Photobioreactor and Wine Fermenter: Growth Kinetics for Sustainable CO2 Biocapture · 2025 · DOI

  • Limited understanding of the impact of aeration rates on pollutant removal and microbial sludge production in microalga-fungus consortia. Need for innovative approaches to treat anaerobic effluents from the soft drink industry. Limited knowledge on the optimization of treatment efficiency and microbial sludge recovery using microalga-fungus pellets.

    Aeration Rate in Tertiary Treatment of Anaerobic Effluent from Soft Drink Industry by Co-Cultivation Between Penicillium gravinicasei and Microalgae · 2025 · DOI

  • The lack of effective methods for monitoring microalgae physiology in complex effluents like winery wastewater. The need for alternative culture media for microalgae cultivation.

    Monitoring C. vulgaris Cultivations Grown on Winery Wastewater Using Flow Cytometry · 2025 · DOI

  • Need for optimal conditions for the growth and enzyme production of Exiguobacterium. Effects of metal ions on alginate lyase activity.

    Heterologous Expression and Functional Analysis of Exiguobacterium Algin Lyase Gene by Pichia pastoris · 2025 · DOI

  • The traditional DHA fermentation method has limitations, including decreased cell metabolic activity and limited duration for efficient production. The accumulation of ROS cannot be avoided in traditional DHA fermentation methods.

    Enhancing Docosahexaenoic Acid Production by Schizochytrium sp. via Periodic Hydrogen Peroxide and p-Aminobenzoate Control · 2025 · DOI

  • Further studies should evaluate the effects of phenolic compounds on other microalgal species, - The long-term effects of phenolic compounds on microalgal metabolism should be assessed, - The potential of Tetraselmis chuii for bioremediation processes should be further…

    Effect Produced by a Mixture of Phenol, p-Cresol, and Acetophenone on Four Species of Microalgae: Tolerance, Biodegradation, and Metabolic Alterations · 2025 · DOI

  • Further characterization of the vinasse, - Investigation of the effects of UV mutagenesis on microalgal metabolism, - Development of strategies to mitigate the challenges associated with tequila vinasse, - Exploration of the potential of microalgae-based systems for treating other types…

    Adaptation and Bioremediation Efficiency of UV-Mutagenized Microalgae in Undiluted Agro-Industrial Effluents from Mexico · 2025 · DOI

  • The study did not investigate the economic feasibility of the treatment in detail, - The study did not analyze the potential environmental impacts of large-scale microalgae cultivation, - The study was limited to a specific type of wastewater…

    Poultry Slaughterhouse Wastewater Treatment by Green Algae: An Eco-Friendly Restorative Process · 2025 · DOI

  • Investigating the economic feasibility of microalgae-based treatment of PSW, - Analyzing the potential environmental impacts of large-scale microalgae cultivation, - Developing more efficient methods for microalgae cultivation…

    Poultry Slaughterhouse Wastewater Treatment by Green Algae: An Eco-Friendly Restorative Process · 2025 · DOI

  • Investigation of the long-term effects of using recycled DC on microalgae cultivation, - Comparison of the effects of recycled DC on different microalgae species, - Optimization of the cultivation conditions for improved biomass production and protein…

    Recirculation of Saline Concentrate in Spirulina Cultivation: A Promising Strategy for High Production of Biomass and Biomolecules in Semiarid Regions · 2025 · DOI

  • Maintaining low capital and operating costs remains a key research focus, - Challenges remain in optimizing and scaling medium recycling strategies, - Adverse effects from algal-derived compounds can occur if not properly…

    Nutrient Recycling in Microalgae Cultivation as a Sustainable Process for Biomass Production · 2025 · DOI

  • Optimizing water recycling while maintaining low capital and operating costs, - Scaling medium recycling strategies for large-scale production, - Developing innovative technologies for sustainable microalgae…

    Nutrient Recycling in Microalgae Cultivation as a Sustainable Process for Biomass Production · 2025 · DOI

  • Improper waste disposal poses a serious threat to both human health and the environment - The need for external nitrogen supplementation in certain substrates reduces their sustainability ranking - The risk of thermal degradation and isomerization in other drying…

    A Potential of Agro-Industrial Biowaste as Low-Cost Substrates for Carotenoid Production by Rhodotorula mucilaginosa · 2025 · DOI

  • Investigating the scalability of the UV and UV/H2O2 pretreatment methods, - Exploring the use of other pretreatment strategies to enhance cell wall disruption, - Optimizing the fermentation conditions to improve biofuel yields, - Studying the environmental impacts of large-scale microalgae…

    Enhanced Biofuel Production from Mixed Marine Microalgae Using UV and UV/H2O2 Pretreatment: Optimization of Carbohydrate Release and Fermentation Efficiency · 2025 · DOI

  • Investigating the use of FC for monitoring microalgae physiology in other complex effluents - Optimising cultivation conditions for C. vulgaris in WWW - Exploring the potential of C.

    Monitoring C. vulgaris Cultivations Grown on Winery Wastewater Using Flow Cytometry · 2025 · DOI

  • Investigating the effect of different operating conditions on C.

    Producing Chlorella vulgaris in Ricotta Cheese Whey Substrate · 2025 · DOI

Most-cited papers in Algal biology and biofuel production

Most recent work

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Open questions raised by papers listed on this page include: (1) There is a need to explore the potential of red microalgae as a functional food source (“Leveraging red microalgae as a potential functional food source: a…”, 2026); (2) The gap in the literature is the lack of studies on the use of desalination concentrate for microalgae cultivation (“Recirculation of Saline Concentrate in Spirulina Cultivation: A Promising…”, 2025); (3) Further research is needed to develop efficient biological CO2 sequestration methods (“Carbon Dioxide Bio-Capture and Organic Carbon Production in Two Microalgae…”, 2025); (4) The lack of selective and environmentally friendly processes for the co-purification of cellulose and chitin polymers from microalgae (“Purification of Cellulose and Chitin Polymers and Other Value-Added Products…”, 2025); (5) There is a need for sustainable practices grounded in bioeconomic principles to mitigate environmental impacts (“Integrated System of Microalgae Photobioreactor and Wine Fermenter: Growth…”, 2025). 629 gap statements have been mined from Algal biology and biofuel production papers in our 7.9M-paper local library, which holds 3,120 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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