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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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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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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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Carotenoids in Microalgae.

Vitalia Henríquez1, Carolina Escobar2, Janeth Galarza2

  • 1Instituto de Biología, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso-Campus Curauma, Av. Universidad 330, Valparaíso, Chile. vhenriqu@ucv.cl.

Sub-Cellular Biochemistry
|August 4, 2016
PubMed
Summary
This summary is machine-generated.

Microalgae are a valuable source of high-value carotenoids, essential compounds with diverse applications. Genetic engineering can enhance their production for improved industrial and pharmaceutical use.

Keywords:
AlgaeAstaxanthinCetocarotenoidsDunaliella salinaHaematococcus pluvialisMetabolic engineering

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Area of Science:

  • Biochemistry and Biotechnology
  • Microbiology
  • Phycology

Background:

  • Carotenoids are isoprenoids synthesized by various organisms, including microalgae.
  • They play crucial roles in photosynthesis and photoprotection.
  • Microalgae are recognized as significant sources of high-value carotenoids.

Purpose of the Study:

  • To outline high-value carotenoids from commercially important microalgae.
  • To describe their production pathways and genetic engineering for improved rates.
  • To discuss their biotechnological applications.

Main Methods:

  • Review of literature on carotenoid production in microalgae.
  • Analysis of genetic engineering strategies to enhance carotenoid yields.
  • Compilation of data on biotechnological applications of microalgal carotenoids.

Main Results:

  • Identification of key high-value carotenoids produced by microalgae.
  • Overview of established and potential production pathways.
  • Demonstration of improved production rates via genetic engineering.
  • Cataloging of diverse biotechnological applications.

Conclusions:

  • Microalgae offer a sustainable and potent source for high-value carotenoids.
  • Genetic engineering presents a viable strategy for optimizing carotenoid production.
  • The applications of microalgal carotenoids span food, feed, cosmetic, nutraceutical, and pharmaceutical industries.