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Related Concept Videos

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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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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Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
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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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Other Algae01:19

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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...
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Oxygenic Photosynthesis01:26

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Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...
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Related Experiment Video

Updated: Sep 6, 2025

Construction and Setup of a Bench-scale Algal Photosynthetic Bioreactor with Temperature, Light, and pH Monitoring for Kinetic Growth Tests
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Biohydrogen production using algae: Potentiality, economics and challenges.

Abhijeet Pathy1, Krishnamoorthy Nageshwari1, Rameshprabu Ramaraj2

  • 1Agricultural & Environmental Biotechnology Group, Department of Biotechnology & Medical Engineering, National Institute of Technology Rourkela, Odisha 769008, India.

Bioresource Technology
|June 27, 2022
PubMed
Summary

Algal biomass can sustainably produce hydrogen fuel, but economic challenges remain. This review explores production mechanisms, parameters, challenges, and strategies to enhance hydrogen yield and economic viability.

Keywords:
AlgaeBio-photolysisBiohydrogenFermentationInfluencing factorsPre-treatment

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Area of Science:

  • Biotechnology
  • Renewable Energy
  • Biochemical Engineering

Background:

  • Algal biomass offers a sustainable feedstock for biohydrogen production, a crucial step towards renewable fuel alternatives.
  • Current biohydrogen production processes face economic feasibility challenges, hindering industrial-scale application.
  • Understanding the intricate mechanisms and enzymatic pathways is vital for optimizing hydrogen generation from algae.

Purpose of the Study:

  • To review the potential of algal biomass for biohydrogen production.
  • To detail the mechanisms, enzymes, and experimental parameters influencing hydrogen generation.
  • To analyze challenges, recent enhancement strategies, economic viability, and future scope of algal biohydrogen technology.

Main Methods:

  • Comprehensive literature review of biohydrogen production from algal biomass.
  • Analysis of biochemical pathways and enzymatic processes involved in hydrogenesis.
  • Evaluation of experimental parameters affecting biohydrogen yield.
  • Assessment of economic factors and future technological advancements.

Main Results:

  • Algal biomass is a promising source for sustainable hydrogen fuel.
  • Various mechanisms and enzymes are involved, with parameters significantly impacting production rates.
  • Key challenges include low yields and high costs, but recent strategies show promise.
  • Economic feasibility and future scope require further technological development and optimization.

Conclusions:

  • Algal biohydrogen production holds significant potential for sustainable energy.
  • Overcoming economic bottlenecks through enhanced productivity and efficient strategies is critical.
  • Further research and development are needed to ensure the industrial viability of this technology.