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Related Experiment Video

Updated: Feb 18, 2026

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat
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Growth-Coupled Carotenoids Production Using Adaptive Laboratory Evolution.

Luis H Reyes1, Katy C Kao2

  • 1Process and Product Design Group (GDPP), Department of Chemical Engineering, Universidad de los Andes, Bogotá D.C., Colombia.

Methods in Molecular Biology (Clifton, N.J.)
|November 25, 2017
PubMed
Summary

Adaptive laboratory evolution can improve carotenoid production in yeast. This method enhances antioxidant compound formation when the product benefits the host organism.

Keywords:
Adaptive laboratory evolutionAntioxidantsCarotenoidsStrain improvementYeast

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Area of Science:

  • Biotechnology
  • Microbial Strain Development
  • Metabolic Engineering

Background:

  • Adaptive laboratory evolution (ALE) is a powerful tool for microbial strain development.
  • ALE typically requires coupling the desired trait with host fitness, limiting its use for improving product formation.
  • Product formation can be enhanced by ALE if the target product provides a selective advantage to the host.

Purpose of the Study:

  • To describe an effective ALE strategy for enhancing carotenoid production in Saccharomyces cerevisiae.
  • To demonstrate the utility of ALE for improving the productivity of valuable compounds.

Main Methods:

  • Employing adaptive laboratory evolution in Saccharomyces cerevisiae.
  • Selecting for improved carotenoid production where carotenoids confer a fitness advantage.
  • Utilizing yeast as a host for the biosynthesis of antioxidant compounds.

Main Results:

  • Successfully developed an ALE strategy to improve carotenoid production.
  • Demonstrated that ALE can be effectively applied to enhance the formation of beneficial products.
  • Showcased the potential of Saccharomyces cerevisiae for carotenoid biosynthesis.

Conclusions:

  • Adaptive laboratory evolution is a viable strategy for improving carotenoid production in yeast.
  • This approach overcomes limitations of traditional ALE by leveraging product-driven fitness benefits.
  • The developed method offers a pathway for enhanced production of antioxidant compounds.