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Peer-reviewedCC BYFood Chemistry: X

Layer-number-controlled Fe-tea polyphenol metal-phenolic network-coated PLCL/gelatin electrospun membranes for active preservation of yellow sweet cherries

  • Jiaqi Liu1
  • Tingzi Yan2
  • Qiongyu Wang1
  • Jiaxuan Bao1
  • Yuchan Li1
  • Jigang Piao3
  • Hui Chai4
  • Guoying Zhou4
4 affiliations
  1. 1College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China
  2. 2College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
  3. 3College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China; Corresponding authors at: Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou 310053, China.
  4. 4College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; Corresponding authors at: Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou 310053, China.
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Abstract

To address postharvest fruit spoilage from microbial contamination and oxidation, biodegradable PLCL/gelatin electrospun membranes were functionalized with layer-number-controlled Fe-tea polyphenol (Fe-TP) networks via layer-by-layer assembly. Fe-TP deposition increased fiber diameter, improved hydrophilicity, and enhanced mechanical strength while maintaining flexibility. Increasing the number of assembly cycles enhanced TP release and antioxidant activity, delayed degradation, and improved antibacterial activity against Gram-positive and Gram-negative bacteria. Cytocompatibility and hemolysis assays indicated favorable biosafety. SEM and leakage assays suggested membrane disruption and intracellular leakage as possible antibacterial mechanisms. In yellow sweet cherry preservation, the Fe-TP effectively delayed decay. Although Fe-TP/PLCL-Gel 8 exhibited stronger antibacterial and hydrophilic performance, the Fe-TP/PLCL-Gel 4 achieved the best overall balance of mechanical properties, release, safety, and preservation efficacy, with a day-7 decay rate of only 1.85% ± 3.21%, versus 50.00% ± 5.56% for PE control. This layer-optimized multifunctional electrospun membrane offers a highly effective, promising material for fruit preservation.

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Cite

BibTeXRIS
BibTeX
@article{liu2026layernumbercontrolled,
  title = {{Layer-number-controlled Fe-tea polyphenol metal-phenolic network-coated PLCL/gelatin electrospun membranes for active preservation of yellow sweet cherries}},
  author = {Jiaqi Liu and Tingzi Yan and Qiongyu Wang and Jiaxuan Bao and Yuchan Li and Jigang Piao and Hui Chai and Guoying Zhou},
  journal = {Food Chemistry: X},
  year = {2026},
  month = oct,
  doi = {10.1016/j.fochx.2026.104602},
  url = {https://doi.org/10.1016/j.fochx.2026.104602},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Layer-number-controlled Fe-tea polyphenol metal-phenolic network-coated PLCL/gelatin electrospun membranes for active preservation of yellow sweet cherries
AU  - Jiaqi Liu
AU  - Tingzi Yan
AU  - Qiongyu Wang
AU  - Jiaxuan Bao
AU  - Yuchan Li
AU  - Jigang Piao
AU  - Hui Chai
AU  - Guoying Zhou
PY  - 2026
DA  - 2026/10/21
JO  - Food Chemistry: X
DO  - 10.1016/j.fochx.2026.104602
UR  - https://doi.org/10.1016/j.fochx.2026.104602
AB  - To address postharvest fruit spoilage from microbial contamination and oxidation, biodegradable PLCL/gelatin electrospun membranes were functionalized with layer-number-controlled Fe-tea polyphenol (Fe-TP) networks via layer-by-layer assembly. Fe-TP deposition increased fiber diameter, improved hydrophilicity, and enhanced mechanical strength while maintaining flexibility. Increasing the number of assembly cycles enhanced TP release and antioxidant activity, delayed degradation, and improved antibacterial activity against Gram-positive and Gram-negative bacteria. Cytocompatibility and hemolysis assays indicated favorable biosafety. SEM and leakage assays suggested membrane disruption and intracellular leakage as possible antibacterial mechanisms. In yellow sweet cherry preservation, the Fe-TP effectively delayed decay. Although Fe-TP/PLCL-Gel 8 exhibited stronger antibacterial and hydrophilic performance, the Fe-TP/PLCL-Gel 4 achieved the best overall balance of mechanical properties, release, safety, and preservation efficacy, with a day-7 decay rate of only 1.85% ± 3.21%, versus 50.00% ± 5.56% for PE control. This layer-optimized multifunctional electrospun membrane offers a highly effective, promising material for fruit preservation.
SN  - 2590-1575
ER  -