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Related Concept Videos

Biofuels01:25

Biofuels

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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...
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Green Algae01:21

Green Algae

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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...
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Microbial Bioremediation of Hydrocarbons01:26

Microbial Bioremediation of Hydrocarbons

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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...
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Overview of Algae01:28

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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...
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Bioreactor Controls-III01:22

Bioreactor Controls-III

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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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Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

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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...
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Related Experiment Video

Updated: Apr 7, 2026

Construction and Setup of a Bench-scale Algal Photosynthetic Bioreactor with Temperature, Light, and pH Monitoring for Kinetic Growth Tests
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Developments and challenges in biodiesel production from microalgae: A review.

Tanvi Taparia1, Manjari Mvss1, Rajesh Mehrotra2

  • 1Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Rajasthan, India.

Biotechnology and Applied Biochemistry
|July 17, 2015
PubMed
Summary
This summary is machine-generated.

Microalgae, with high oil content, are a promising renewable energy source. This review covers cultivation, harvesting, extraction, and processing methods for algal biofuels, analyzing their sustainability and economic viability.

Keywords:
algal culturesbiofuelsculture optimizationecofriendlymicroalgae

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Area of Science:

  • Biotechnology
  • Renewable Energy
  • Biomass Production

Background:

  • Fossil fuel depletion and rising energy demands necessitate alternative energy sources.
  • Microalgae are identified as a third-generation biofuel source due to their high oil content (over 80%) and adaptability.
  • Algae offer a versatile and promising solution for sustainable biofuel production.

Purpose of the Study:

  • To review various methods for microalgal cultivation, harvesting, and biomass extraction.
  • To explore downstream processing procedures for algal biofuels.
  • To analyze the advantages, limitations, and challenges of different microalgal biofuel production techniques.

Main Methods:

  • Cultivation techniques for microalgae.
  • Biomass harvesting and extraction methodologies.
  • Downstream processing and biofuel production procedures.

Main Results:

  • Microalgae possess over 80% oil content, making them highly suitable for biofuel production.
  • Various cultivation, harvesting, and extraction methods are available, each with specific pros and cons.
  • Environmental sustainability, economic viability, and cost-effectiveness are key considerations for algal biofuels.

Conclusions:

  • Microalgae represent a significant potential for renewable biofuel generation.
  • Optimization and empirical data are crucial for developing robust and cost-effective algal biofuel systems.
  • A SWOT analysis highlights the strategic position of algae in biodiesel production.