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Related Concept Videos

Biofuels01:25

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...
Green Algae01:21

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...
Overview of Algae01:28

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...
Other Algae01:19

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 Algae01:23

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...
Bioreactor Controls-III01:22

Bioreactor Controls-III

Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...

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Related Experiment Video

Updated: Jun 27, 2026

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
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Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

Published on: January 7, 2019

Microalgae as Novel Food Resources: Technological Breakthroughs, Application Bottlenecks, and Future Pathways.

Xiaomei Zhang1, Weixian Chen2,3, Hui Chen3,4

  • 1School of Food and Health Engineering, Zhengzhou University of Technology, Zhengzhou 450044, China.

Foods (Basel, Switzerland)
|June 26, 2026
PubMed
Summary

Microalgae offer sustainable nutrition rich in protein and omega-3s, with growing regulatory approval for food applications. Challenges like cost and sensory issues hinder wider adoption, requiring further research for commercial success.

Keywords:
alternative proteinmicroalgaenovel foodproduction costregulatory approvalsensory acceptability

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Evaluation of the Effect of Growth Factors on Chlorophylls a and b Production from Microalgae
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Evaluation of the Effect of Growth Factors on Chlorophylls a and b Production from Microalgae

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Last Updated: Jun 27, 2026

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
11:08

Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids

Published on: January 7, 2019

Construction and Setup of a Bench-scale Algal Photosynthetic Bioreactor with Temperature, Light, and pH Monitoring for Kinetic Growth Tests
10:08

Construction and Setup of a Bench-scale Algal Photosynthetic Bioreactor with Temperature, Light, and pH Monitoring for Kinetic Growth Tests

Published on: June 14, 2017

Evaluation of the Effect of Growth Factors on Chlorophylls a and b Production from Microalgae
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Evaluation of the Effect of Growth Factors on Chlorophylls a and b Production from Microalgae

Published on: October 25, 2024

Area of Science:

  • Food Science
  • Biotechnology
  • Sustainable Agriculture

Background:

  • Growing global population and demand for sustainable food systems highlight microalgae as a novel food source.
  • Microalgae are nutrient-dense, containing protein, omega-3 fatty acids, and bioactive pigments like astaxanthin and phycocyanin.
  • Cultivation offers advantages over traditional agriculture, utilizing non-arable land and potentially reducing competition for resources.

Purpose of the Study:

  • To review microalgae as novel food resources, focusing on regulatory approvals, strain selection, utilization, and market translation.
  • To synthesize evidence on nutritional value, applications, and global regulatory landscapes.
  • To analyze key challenges and propose research and policy pathways for industrial integration.

Main Methods:

  • Literature review of scientific evidence and regulatory documents.
  • Analysis of nutritional profiles, application scenarios, and market trends.
  • Identification of bottlenecks and knowledge gaps in microalgae food commercialization.

Main Results:

  • Several microalgal species and ingredients are approved in China, the EU, and the US for food and supplements.
  • Key challenges include off-flavors, color, high production costs, energy-intensive purification, and fragmented regulations.
  • Limited long-term data exists on bioavailability, allergenicity, safety, and dose-response for emerging strains.

Conclusions:

  • Microalgae hold significant potential as sustainable food resources, supported by increasing regulatory acceptance.
  • Overcoming technical, economic, and regulatory hurdles is crucial for broader commercial adoption.
  • Further research is needed to address knowledge gaps in safety, efficacy, and sensory attributes to facilitate market translation.