文献类型： 外文期刊
作者： Zhang, Yonghua 1 ; OuYang, Qiuli 1 ; Duan, Bin 1 ; Reymick, Okwong Oketch 1 ; Chen, Yue 1 ; Tan, Yuanzhen 1 ; Zhu, Xiangrong 2 ; Su, Donglin 2 ; Li, Gaoyang 2 ; Tao, Nengguo 1 ;
作者机构： 1.Xiangtan Univ, Sch Chem Engn, Xiangtan 411105, Peoples R China
2.Hunan Acad Agr Sci, Hunan Agr Prod Proc Inst, Changsha 410125, Peoples R China
关键词： Citrus; Green mold; Inhibitory effect; Trans-2-hexenal-beta-cyclodextrin; Penicillium digitatum
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.751； 五年影响因子：7.001 ）
ISSN： 0925-5214
年卷期： 2022 年 187 卷
页码：
收录情况： SCI
摘要： Green mold, caused by Penicillium digitatum, is the primary postharvest disease in citrus fruit. Trans-2-hexenal was found to exert a considerable inhibitory effect on the mycelial growth of P. digitatum with a minimum fungicidal concentration (MFC) of 0.106 g L-1. To overcome its hydrophobic restriction, a trans-2-hexenal-beta-cyclodextrin inclusion complex (beta-CDIC) was prepared by the saturated aqueous solution method. In vitro assays revealed that the MFC of beta-CDIC for P. digitatum mycelial growth was 1.00 g L-1, and 10.0 g L-1 beta-CDIC apparently reduced the incidence of green mold in citrus fruit inoculated with P. digitatum while maintaining fruit quality. The structure of beta-CDIC was characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), fourier transform-infrared spectroscopy (FT-IR), thermogravimetric (TG), and nuclear magnetic resonance (NMR) analyzes. The results showed that the H-1 proton of trans-2-hexenal correlated with the H-5' proton of beta-cyclodextrin (beta-CD), which was further confirmed by molecular docking analysis. The present study suggests that beta-CDIC is a promising candidate for controlling postharvest diseases in citrus fruit.
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