Related Experiment Video
Updated: Jun 27, 2026

11:08
Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
Published on: January 7, 2019
Microalgae as Future Foods: Unlocking Their Potential and Overcoming Barriers to Market Adoption and
Tatiele C do Nascimento1, Christian R Lugcheer1, Luisa C Schetinger1
1Bioprocess Intensification Group, Department of Food Technology and Science, Federal University of Santa Maria (UFSM), Santa Maria 97105-900, Brazil.
Foods (Basel, Switzerland)
|June 26, 2026
Summary
Microalgae offer sustainable, nutritious food potential but face hurdles. Challenges include high costs, processing difficulties, sensory issues, and regulatory barriers hindering widespread food industry adoption.
Area of Science:
- Food Science
- Biotechnology
- Sustainable Agriculture
Background:
- Microalgae have been recognized for over 70 years as a sustainable food source due to their rich nutritional profile.
- They contain high protein, essential amino acids, fatty acids, pigments, and bioactive compounds, positioning them as alternatives to conventional ingredients.
Purpose of the Study:
- To critically analyze the primary challenges hindering the large-scale integration of microalgae into the food industry.
- To identify key bottlenecks in production, processing, sensory acceptance, and market adoption.
Main Methods:
- Critical analysis of existing literature and industry data.
- Identification and categorization of technological, economic, sensory, and regulatory barriers.
- Review of consumer perception studies related to microalgae-based foods.
Main Results:
- Significant challenges include high production costs, complex biomass processing, and difficulties in extracting valuable compounds.
- Sensory attributes like strong flavor, odor, and intense color negatively impact consumer acceptance.
- Scalability, contamination risks, regulatory hurdles, and limited consumer familiarity further impede market integration.
Conclusions:
- Microalgae hold substantial promise as a sustainable food resource.
- Overcoming technological, economic, sensory, and regulatory barriers is crucial for successful market consolidation and broader integration into the food industry.
Related Concept Videos
Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
Overview of Algae
The kingdom Archaeplastida encompasses red and green algae, along with land plants. Unlike other protists with chloroplasts that arose through secondary endosymbiosis, only red and green algae originated from primary endosymbiotic events. This diverse group of eukaryotic organisms contains chlorophyll and performs oxygenic photosynthesis.Algae exist in various forms, from large brown kelp in coastal waters to green scum in puddles and stains on rocks or soil. Some species are responsible for...
Green Algae
Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
Other Algae
The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
Red Algae
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...

