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      An inclusion complex of eugenol into β-cyclodextrin: Preparation, and physicochemical and antifungal characterization

      , , , , , ,
      Food Chemistry
      Elsevier BV

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          Abstract

          The inclusion of eugenol (EG) into β-cyclodextrin (βCD), its structural characterization and antifungal activity, and mode of action for control of Peronophythora litchii in postharvest fresh litchi fruits is described. Nuclear magnetic resonance spectra revealed chemical shifts in H-3 and H-5 protons of βCD, indicating EG inclusion into the lipophilic cavity of βCD. In vitro assays showed βCD-EG significantly inhibited P. litchii colony growth in a concentration- and time-dependent manner (MIC100=0.2g). In vivo assays showed βCD-EG significantly (p<0.05) reduced the decay index of treated fresh litchi fruits. After exposure to βCD-EG, the surface of P. litchii hyphae and/or sporangiophores became wrinkled, with folds and breakage observed by scanning electron microscopy. Damage to hyphal and/or sporangiophore cell walls and membrane structures post-treatment with βCD-EG was confirmed by transmission electron microscopy. Therefore, βCD-EG shows great potential as a controlled-release agent against P. litchii.

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          Author and article information

          Journal
          Food Chemistry
          Food Chemistry
          Elsevier BV
          03088146
          April 2016
          April 2016
          : 196
          : 324-330
          Article
          10.1016/j.foodchem.2015.09.052
          26593497
          8ee1edaa-6fa1-40a7-8f9d-40e77d57a892
          © 2016

          https://www.elsevier.com/tdm/userlicense/1.0/

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