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<p>Cyclodextrin-based Nanosponges (β-CD NS) have been recently used in the pharmaceutical, biomedical, and cosmetic industries. In this work, citric acid (CA) crosslinked β-CD NS were firstly prepared by a green and simple protocol and then characterized by Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), X-ray Powder Diffraction (XRPD), and Dynamic Light Scattering (DLS). The results showed the formation of thermostable NS with a uniform distribution. These β-CD NS demonstrate their efficiency in vitro against <i>Fusarium oxysporum</i> (<i>F. oxysporum</i>) in comparison to the citric acid to reach an inhibition diameter of 3&#xa0;cm. Using 5&#xa0;mg/mL, the NS showed to be efficient to inhibit the growth of this phytopathogenic strain introduced into tomato fruit after 14 days of incubation at 30&#xa0;°C. Thus, these harmless hydrogels could be used in post-harvest disease management to combat the devastation caused by pathogenic fungi on crops.</p> Graphical Abstract <p></p>

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Sustainable Preservation of Tomato Fruits Using Citric Acid Crosslinked β-Cyclodextrin Nanosponges Against Fusarium Oxysporum Strain

  • 期刊论文

  • 发表日期：

    2025年9月5日

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  • Fakhreddine Ben Amara,
  • Helena Cabral-Marques,
  • Nuno Costa,
  • Samir Bejar,
  • Sonia Jemli

摘要

Cyclodextrin-based Nanosponges (β-CD NS) have been recently used in the pharmaceutical, biomedical, and cosmetic industries. In this work, citric acid (CA) crosslinked β-CD NS were firstly prepared by a green and simple protocol and then characterized by Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), X-ray Powder Diffraction (XRPD), and Dynamic Light Scattering (DLS). The results showed the formation of thermostable NS with a uniform distribution. These β-CD NS demonstrate their efficiency in vitro against Fusarium oxysporum (F. oxysporum) in comparison to the citric acid to reach an inhibition diameter of 3 cm. Using 5 mg/mL, the NS showed to be efficient to inhibit the growth of this phytopathogenic strain introduced into tomato fruit after 14 days of incubation at 30 °C. Thus, these harmless hydrogels could be used in post-harvest disease management to combat the devastation caused by pathogenic fungi on crops.

Graphical Abstract