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Abstract <p>Two samples of silver nanoparticles (AgNPs) stabilized with the salt of a natural polysaccharide (sodium alginate) are obtained. The samples differed in their synthesis conditions, in particular, they had different nanoparticle growth rates. At a lower growth rate, the formation of smaller AgNPs with a narrower size distribution, as indicated by the assessment of the width of the surface plasmon resonance for this sample, is observed. Testing the antimicrobial activity of the studied composites against acetic acid bacteria of the strain <i>Gluconobacter oxydans</i> sbsp. <i>industrius</i> VKM B-1280 (All-Russian Collection of Microorganisms) show that the inhibition of colony growth occurred with both AgNP samples. The test is carried out using the method of diffusion of the active component in agar gel. The obtained results indicate that the formed coating based on sodium alginate-stabilized AgNPs inhibits the occurrence of the bacterial rot of apples and such a coating can be used as an antimicrobial agent.</p>

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Obtaining Silver Nanoparticles Stabilized by Sodium Alginate and Their Application for Inhibiting Apple Rot

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • S. A. Baskakov,
  • A. G. Bykov,
  • A. N. Reshetilov,
  • E. N. Kabachkov,
  • Yu. V. Baskakova,
  • S. S. Krasnikova,
  • Yu. M. Shulga

摘要

Abstract

Two samples of silver nanoparticles (AgNPs) stabilized with the salt of a natural polysaccharide (sodium alginate) are obtained. The samples differed in their synthesis conditions, in particular, they had different nanoparticle growth rates. At a lower growth rate, the formation of smaller AgNPs with a narrower size distribution, as indicated by the assessment of the width of the surface plasmon resonance for this sample, is observed. Testing the antimicrobial activity of the studied composites against acetic acid bacteria of the strain Gluconobacter oxydans sbsp. industrius VKM B-1280 (All-Russian Collection of Microorganisms) show that the inhibition of colony growth occurred with both AgNP samples. The test is carried out using the method of diffusion of the active component in agar gel. The obtained results indicate that the formed coating based on sodium alginate-stabilized AgNPs inhibits the occurrence of the bacterial rot of apples and such a coating can be used as an antimicrobial agent.