Ethylene Removal Efficiency of Porous Composites and Their Application in Mango Preservation

CHEN Shiting; ZHONG Yunyun; XIAO Naiyu; WANG Honglei; LUO Wenhan; ZHANG Xueqin; CHENG Zheng; ZHAI Wanjing

doi:10.19554/j.cnki.1001-3563.2026.15.015

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (15) : 149-159. DOI: 10.19554/j.cnki.1001-3563.2026.15.015

Agro-products Preservationand Food Packaging

Ethylene Removal Efficiency of Porous Composites and Their Application in Mango Preservation

CHEN Shiting, ZHONG Yunyun^*, XIAO Naiyu, WANG Honglei, LUO Wenhan, ZHANG Xueqin, CHENG Zheng, ZHAI Wanjing

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Abstract

The work aims to address the limitations of existing ethylene removal materials in terms of adsorption capacity and oxidation efficiency by achieving performance breakthroughs through constructing an adsorption-oxidation synergistic system. Optimal porous materials were systematically screened to determine the most suitable carriers. Subsequently, they were impregnated with potassium permanganate to prepare composite removal materials. Ethylene removal efficacy and mango preservation effectiveness were evaluated through experimental tests. The 10 g calcium-based 5Å molecular sieve composite loaded with a 5 g saturated potassium permanganate (KmnO₄) solution demonstrated superior performance. Under optimized conditions, it completely removed ethylene from an initial concentration of 130 ppm within 150 minutes. XRD and BET characterization confirmed that potassium permanganate was highly dispersed as sub-nanoscale clusters within the molecular sieve pores. After loading, the specific surface area decreased from 435.85 to 161.41 m²/g, and the pore volume reduced from 0.19 to 0.083 cm³/g, while the microporous framework remained intact. The mango preservation experiment showed that the composite effectively delayed fruit ripening, reduced spoilage rates, and maintained fruit hardness. The preservation efficacy significantly improved as the loading amount increased. At a dosage of 40 g per kg of mangoes, the spoilage rate dropped to 22.7% after 11 days of storage, and the hardness was maintained at 5.76 kg/cm², which was significantly better than that of the control group. This study successfully developed a calcium-based 5Å molecular sieve-based "adsorption-oxidation" synergistic system. The material exhibits outstanding ethylene removal efficiency and potential for fruit/vegetable preservation, providing a novel strategy for developing high-performance ethylene removers.

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porous materials / KMnO₄ / ethylene removal / mango preservation

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CHEN Shiting, ZHONG Yunyun, XIAO Naiyu, WANG Honglei, LUO Wenhan, ZHANG Xueqin, CHENG Zheng, ZHAI Wanjing. Ethylene Removal Efficiency of Porous Composites and Their Application in Mango Preservation[J]. Packaging Engineering. 2026, 47(15): 149-159 https://doi.org/10.19554/j.cnki.1001-3563.2026.15.015

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