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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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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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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...
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Microalgae proteins: production, separation, isolation, quantification, and application in food and feed.

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Area of Science:

  • Biotechnology
  • Sustainable Agriculture
  • Food Science

Background:

  • Increasing global protein consumption strains conventional agriculture.
  • Conventional protein production has significant environmental drawbacks.
  • Microalgae present a sustainable alternative for food and feed production.

Purpose of the Study:

  • To review current microalgae protein production methods.
  • To explore the potential of microalgae as a novel protein source.
  • To assess the integration of microalgae protein and biofuel production.

Main Methods:

  • Literature review of microalgae protein extraction techniques.
  • Analysis of microalgae biomass fractionation for value-added products.
  • Evaluation of cell disruption methods for protein release.

Main Results:

  • Microalgae possess high protein content, exceeding conventional sources.
  • Whole microalgae biomass is a viable food and feed ingredient.
  • Advanced processing is needed for microalgae protein isolates and supplements.

Conclusions:

  • Microalgae protein production is a promising strategy for sustainable food and feed.
  • Efficient cell disruption and fractionation are key to unlocking microalgae's potential.
  • Co-production of proteins and biofuels from microalgae warrants further investigation.