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[Microbial stabilization of grain raw material using silver nanoparicles].

O A Suvorov1, G V Balandin1

  • 1Moscow State University of Food Production.

Voprosy Pitaniia
|January 16, 2019
PubMed
Summary
This summary is machine-generated.

Silver nanoparticles (SNP) effectively inhibit grain-contaminating microbes. Alkaline treatment removes most silver from treated grain before processing, ensuring safety for food applications like fermentation and baking.

Keywords:
antimicrobial treatmentchitosancontaminationgrainsilver nanoparticles

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Area of Science:

  • Food Science and Technology
  • Materials Science
  • Microbiology

Context:

  • Grain raw materials are susceptible to microbial contamination, impacting quality and safety.
  • Silver nanoparticles (SNP) offer potential antimicrobial properties for food processing applications.
  • Ensuring the safety of nanoparticle-treated food products is critical for consumer acceptance.

Purpose:

  • To evaluate colloidal silver nanoparticles (SNP) as an antimicrobial agent for grain raw materials.
  • To determine effective antimicrobial concentrations of SNP solutions against grain microbiota.
  • To develop a method for removing SNP from treated grain prior to food processing.

Summary:

  • Colloidal silver nanoparticles (SNP) demonstrated bacteriostatic and fungistatic effects on grain-contaminating microorganisms.
  • A mathematical model correlated SNP concentration with microbial reduction in wheat grain.
  • Alkaline treatment effectively removed significant amounts of SNP from barley grain, reducing silver content over 400-fold.

Impact:

  • Established effective antimicrobial concentrations for SNP in grain processing.
  • Developed and validated an alkaline washing method to reduce residual silver in grain.
  • Demonstrated that treated grain meets safety standards for use in fermentation and bakery products.