Related Experiment Video
Updated: Jun 8, 2026

11:08
Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
Published on: January 7, 2019
Present and potential industrial applications of macro- and microalgae
1Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA. ymlo@umd.edu.
Recent Patents on Food, Nutrition & Agriculture
|September 23, 2010
Summary
This review explores diverse algae applications, from food and cosmetics to environmental and biofuel uses. It highlights algal biomass valorization and biorefinery concepts for sustainable resource utilization.
Area of Science:
- Algal biotechnology and bioproducts
- Sustainable resource utilization
- Biorefinery and waste valorization
Background:
- Algae (macro- and microalgae) offer a wide range of applications.
- Conventional uses include food, feed, dietary supplements, and cosmetics.
- Emerging applications focus on environmental remediation and biofuel production.
Purpose of the Study:
- To provide a comprehensive overview of value-added applications for algae.
- To compare cultivation systems for macro- and microalgae concerning specific products.
- To discuss the potential of algal biomass, including waste streams, within a biorefinery framework.
Main Methods:
- Review of existing literature on algae cultivation and applications.
- Separate discussion of macroalgae and microalgae due to cultivation differences.
- Analysis of cultivation systems in relation to specific value-added products.
- Exploration of algal biomeal utilization for waste recovery and biorefinery.
Main Results:
- Algae present diverse opportunities across conventional and novel sectors.
- Cultivation methods significantly influence product yield and application suitability.
- Algal biomass, including post-extraction residues, holds potential for biorefinery applications.
- Promising patents indicate industrial interest in various algal applications.
Conclusions:
- Algae are versatile resources with significant potential for sustainable industrial applications.
- Integrated biorefinery approaches can maximize value from algal biomass and minimize waste.
- Further research and patent development are driving innovation in algal product development.
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...
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 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...
Environmental Applications of Microorganisms
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
Microbial Bioremediation of Hydrocarbons
Bioremediation is an environmentally sustainable process that employs living organisms—primarily microorganisms—to degrade or neutralize pollutants from contaminated environments. In oil spills and hydrocarbon pollution, bioremediation involves the use of hydrocarbon-degrading bacteria to transform toxic compounds into less harmful substances. This approach leverages natural microbial metabolic processes and is considered both cost-effective and ecologically favorable compared to physical or...
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...

