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Related Experiment Video

Updated: Apr 14, 2026

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Amino Acid-Coated Nanoparticles for Preservation of Cut Roses: Formulation and Performance.

Konstantinos T Kotoulas1,2,3, Midhun D Nair3, Thomas Hinton1

  • 1Department of Chemical Engineering, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom.

ACS Omega
|April 13, 2026
PubMed
Summary
This summary is machine-generated.

Amino acid-coated nanoparticles delivering essential micronutrients can extend the vase life of cut flowers like Avalanche Roses. Specific micronutrients, such as iron and manganese, show significant benefits by reducing oxidative stress and improving flower quality.

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Area of Science:

  • Plant Physiology
  • Nanotechnology
  • Agricultural Science

Background:

  • Cut flowers experience rapid postharvest decline due to membrane degradation, oxidative stress, and pigment loss.
  • Nanoparticle treatments offer potential for extending floral vase life, but their efficacy in ornamental species needs further investigation.
  • Amino acid coatings improve nanoparticle solubility for better delivery of micronutrients to floral tissues.

Purpose of the Study:

  • To evaluate the impact of amino acid-coated micronutrient nanoparticles on the postharvest performance of Avalanche Roses.
  • To determine the effects of individual and blended micronutrient nanoparticles (Fe, Cu, Zn, Mn, Mg, Si, Se) on physiological and biochemical parameters.
  • To identify optimal nanoparticle formulations and potential toxicity thresholds for cut flower preservation.

Main Methods:

  • Assessment of physiological, biochemical, and optical parameters including water uptake, membrane stability index (MSI), and pigment profiles.
  • Quantification of nanoparticle uptake using X-ray fluorescence spectrometry and ICP-MS.
  • Evaluation of antioxidant enzyme activity and lipid peroxidation markers.

Main Results:

  • Manganese, copper, and iron nanoparticles significantly improved MSI, enhanced superoxide dismutase activity, and reduced lipid peroxidation.
  • Iron (10 mg/L) and iron-manganese blend nanoparticles demonstrated notable benefits in preserving pigment dynamics and increasing fructose levels.
  • Higher concentrations of copper, silicon, selenium, and magnesium nanoparticles induced negative effects, including anthocyanin degradation and increased lipid peroxidation, indicating toxicity.

Conclusions:

  • Amino acid-coated micronutrient nanoparticles can effectively enhance postharvest quality and extend vase life in Avalanche Roses.
  • Specific micronutrients (Mn, Cu, Fe) and their blends show promise in mitigating oxidative stress and improving physiological parameters.
  • Careful consideration of nanoparticle concentration is crucial to avoid phytotoxicity and achieve desired preservation effects.