Combination of Cinnamaldehyde/(1-cyclodextrin inclusion complex and L-phenylalanine effectively reduces the postharvest green mold in citrus fruit

文献类型: 外文期刊

第一作者: Zhang, Yonghua

作者: Zhang, Yonghua;Reymick, Okwong Oketch;Duan, Bin;Tao, Nengguo;Reymick, Okwong Oketch;Ding, Shenghua;Wang, Rongrong

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关键词: Cinnamaldehyde; (1-Cyclodextrin; Inclusion complex; L -phenylalanine; Penicillium digitatum

期刊名称:PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY ( 影响因子:4.2; 五年影响因子:4.6 )

ISSN: 0048-3575

年卷期: 2024 年 204 卷

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收录情况: SCI

摘要: The essential oil and (1-cyclodextrin inclusion complex was able to inhibit the growth of Penicillium digitatum, a damaging pathogen that causes green mold in citrus fruit. In this study, cinnamaldehyde-(1-cyclodextrin inclusion complex ((1-CDCA) for controlling citrus green mold was synthesized by the co-precipitation method. Characterization of (1-CDCA revealed that the aromatic ring skeleton of cinnamaldehyde (CA) was successfully embedded into the cavity of (1-CD to form the inclusion complex. (1-CDCA inhibited P. digitatum at a minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of 4.0 g/L. FT-IR spectroscopy analysis, calcofluor white staining, extracellular alkaline phosphatase (AKP) activity and propidium iodide (PI) staining of hyphae morphology showed that (1-CDCA may damage the cell ultrastructure and membrane permeability of P. digitatum. The study further demonstrated that hydrogen peroxide (H2O2), malondialdehyde (MDA), and reactive oxygen species (ROS) markedly accumulated in 1/2 MIC (1-CDCA treated hyphae. This implied that (1-CDCA inhibited growth of P. digitatum by the triggering oxidative stress, which may have caused cell death by altering cell membrane permeability. In addition, in vivo results showed that (1-CDCA alone or combined with L-phenylalanine (L-PHe) displayed a comparable level to that of prochloraz. Therefore, (1-CDCA combined with L-PHe can thus be used as an eco-friendly preservative for the control green mold in postharvest citrus fruit.

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