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Bioremediation00:46

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Updated: Jun 28, 2025

High-throughput Siderophore Screening from Environmental Samples: Plant Tissues, Bulk Soils, and Rhizosphere Soils
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Selenium bioactive compounds produced by beneficial microbes.

L Crespo1, B Sede Lucena2, F G Martínez1

  • 1Centro de Referencia para Lactobacilos (CERELA)-CONICET, San Miguel de Tucumán, Argentina.

Advances in Applied Microbiology
|April 18, 2024
PubMed
Summary
This summary is machine-generated.

Selenium (Se) is an essential trace element crucial for human health, with deficiency affecting millions globally. Utilizing Se-enriched bacteria and nanoparticles offers a safe and bioavailable method to enhance dietary Se intake and combat deficiency-related diseases.

Keywords:
Bioactive compoundsGrowth promoting bacteriaLactic acid bacteriaSelenium

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Area of Science:

  • Biochemistry and Human Health
  • Environmental Science and Microbiology
  • Food Science and Nutrition

Background:

  • Selenium (Se) is a vital trace element, integral to selenoproteins involved in human thyroid metabolism and redox balance.
  • Se deficiency impacts 500-1000 million people worldwide, linked to increased susceptibility to infections and chronic diseases like cancer and neurodegenerative disorders.
  • Dietary Se intake is influenced by soil content and bioavailability, with significant regional variations in Se distribution.

Purpose of the Study:

  • To explore bacterial selenium metabolism and its impact on human health.
  • To investigate the application of selenium nanoparticles (SeNPs) and Se-enriched bacteria in food fortification.
  • To discuss sustainable strategies for counteracting Se deficiency through enriched foods and improving public health.

Main Methods:

  • Review of bacterial Se metabolism and transformation of Se salts into less toxic, bioavailable forms like Se amino acids and SeNPs.
  • Application of generally accepted as safe selenized microorganisms in manufacturing selenized fermented and probiotic foods.
  • Utilizing plant growth-promoting bacteria and their SeNPs for Se biofortification of crops.

Main Results:

  • Se amino acids and SeNPs are identified as the least toxic and most bioavailable forms of Se compared to Se salts.
  • Selenized microorganisms and SeNPs can be effectively used for food fortification and crop biofortification.
  • Bacterial Se metabolism offers sustainable pathways for producing Se-enriched foods.

Conclusions:

  • Enhancing dietary Se status through biofortified foods is a key strategy to combat widespread Se deficiency.
  • The use of Se-enriched bacteria and SeNPs presents a safe, sustainable, and effective approach to improve human Se intake and health outcomes.
  • Further research into bacterial Se metabolism and applications holds significant promise for public health interventions.