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. 2024 Dec;282(Pt 6):137399.
doi: 10.1016/j.ijbiomac.2024.137399. Epub 2024 Nov 7.

Metal-anchored oxidized starch-pullulan nanofiber films enhance ethylene adsorption and banana preservation

Chunwei Du  1 , Yi Jiang  1 , Shahid Ahmed Junejo  1 , Xiangze Jia  2 , Bin Zhang  3 , Qiang Huang  4
Affiliations

Metal-anchored oxidized starch-pullulan nanofiber films enhance ethylene adsorption and banana preservation

Chunwei Du et al. Int J Biol Macromol. 2024 Dec.

Abstract

The development of novel strategies to control ethylene accumulation of fruit is crucial for improving food preservation and reducing spoilage-related losses. In this study, an oxidized starch-pullulan (OS-PUL) nanofiber films were prepared with silver, copper, and iron to control ethylene accumulation. The starch nanofiber film exhibited an average diameter of 96 nm at an OS-PUL concentration of 25 % (wt/wt). Adsorption test showed the maximum ethylene adsorption capacity (21.86 mg·m-2) of metal-nanofiber film with typical hierarchical microporous and mesoporous structure. Oxidized starch-pullulan-metal-nanofiber film extended the shelf life of bananas from 8 to 15 days by efficiently absorbing ethylene. This work will contribute to the development of innovative packaging materials with ethylene adsorption properties, which can help reduce food waste.

Keywords: Banana preservation; Electrospinning; Ethylene adsorption; Oxidized starch.

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Conflict of interest statement

Declaration of competing interest We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product of the manuscript entitled “Metal-anchored oxidized starch-pullulan nanofiber films enhance ethylene adsorption and banana preservation”.

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