| Literature DB >> 26593497 |
Liang Gong1, Taotao Li1, Feng Chen2, Xuewu Duan1, Yunfei Yuan1, Dandan Zhang1, Yueming Jiang3.
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.Entities:
Keywords: Eugenol; Fungicide; Inclusion complex; Mode of action; Peronophythora litchii
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Year: 2015 PMID： 26593497 DOI： 10.1016/j.foodchem.2015.09.052
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514