The efficacy of polyethylene foam nets coated with gelatin-TiO₂ photocatalytic nanocomposite to postpone the climacteric fruit ripening was evaluated. The gelatin-TiO₂ nanocomposite was deposited on the foam nets by dip-coating and used to degrade ethylene produced by papayas. Fruit treated with TiO₂ photocatalysis showed an ethylene accumulation 60 % less than the control experiment fruit after four days under UV-A light. The photocatalytic degradation of ethylene produced by papayas over four days caused an effective delay of their ripening. It was characterized by the respiration rate reduction during the climacteric peak, absence of scalds and superficial fungi growth and more remarkable preservation of green color and firmness than control samples. The results showed that nanocomposite foam nets degraded ethylene under UV-A light and postponed the fruit ripeness and quality changes.

评估了涂有明胶-TiO ₂光催化纳米复合材料的聚乙烯泡沫网推迟更年期果实成熟的功效。明胶-TiO ₂纳米复合材料通过浸涂沉积在泡沫网上，用于降解木瓜产生的乙烯。用TiO ₂处理的水果在 UV-A 光下四天后，光催化显示乙烯积累比对照实验水果少 60%。木瓜在四天内产生的乙烯的光催化降解导致其成熟的有效延迟。它的特点是在更年期高峰期间呼吸率降低，没有烫伤和表面真菌生长，并且比对照样品更显着地保留了绿色和硬度。结果表明，纳米复合泡沫网在UV-A光下降解乙烯，延缓果实成熟和品质变化。