Cellulose nanofiber/gelatin-based multifunctional ethylene scavenging active packaging films integrated with TiO2-functionalized Bi(III) metal-organic frameworks

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life Pub Date : 2025-08-15 DOI:10.1016/j.fpsl.2025.101596

Ajahar Khan , Zohreh Riahi , Su Jung Hong , Jun Tae Kim , Jong-Whan Rhim , Sea C. Min

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引用次数: 0

Abstract

Functionalized Bi(III) metal-organic frameworks containing TiO₂ (Bi-MOF@Ti) were synthesized using a straightforward blending method and incorporated into cellulose nanofibers (CNF) and gelatin (Gel) films to enhance the preservability of bananas. The MOF particles and films were characterized through FE-SEM, FTIR, and XRD analyses, which confirmed the successful synthesis of Bi-MOF@Ti and the effective blending into the CNF/Gel matrix, respectively. The incorporation of Bi-MOF@Ti significantly improved antibacterial efficacy, reducing the UV transmittance of the films, which blocked UV-B and UV-A by 99.6 % and 97.8 %, respectively, while eliminating Staphylococcus aureus and inhibiting the growth of S. enterica, L. monocytogenes, and E. coli by 90.2 %, 91.5 %, and 88.4 %, respectively. Furthermore, introducing Bi-MOF@Ti (4 wt% based on CNF and Gel) increased the tensile strength by up to 21.4 % and enhanced both the photocatalytic degradation of ethylene and the antioxidant activity (100 % radical scavenging of ABTS) of the CNF/Gel films. The CNF/Gel/Bi-MOF@Ti films effectively preserved bananas by maintaining their firmness, delaying yellowing, reducing weight loss, and extending their freshness by up to 10 days. These multifunctional properties illustrate the potential of this film as an eco-friendly active packaging solution to maintain the aesthetic quality of bananas and extend their shelf life by mitigating ethylene accumulation.

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基于纤维素纳米纤维/明胶的多功能乙烯清除活性包装膜与二氧化钛功能化Bi（III）金属有机框架

采用直接共混法合成了含TiO 2 （Bi-MOF@Ti）的功能化Bi（III）金属有机骨架，并将其掺入纤维素纳米纤维（CNF）和明胶（Gel）薄膜中，以提高香蕉的保存性。通过FE-SEM， FTIR和XRD对MOF颗粒和膜进行了表征，分别证实了Bi-MOF@Ti的成功合成和CNF/Gel基体的有效共混。Bi-MOF@Ti的掺入显著提高了抗菌效果，降低了膜的紫外线透过率，对UV- b和UV- a的阻断率分别为99.6% %和97.8% %，对金黄色葡萄球菌的抑制率分别为90.2 %、91.5 %和88.4 %，对肠链球菌、单核增生乳杆菌和大肠杆菌的生长抑制率分别为90.2% %、91.5 %和88.4 %。此外，引入Bi-MOF@Ti（4 wt%基于CNF和Gel）使CNF/Gel膜的抗拉强度提高了21.4% %，并增强了乙烯的光催化降解和抗氧化活性（100 %自由基清除ABTS）。CNF/Gel/Bi-MOF@Ti薄膜通过保持香蕉的硬度、延缓变黄、减少重量损失和延长香蕉的新鲜度，有效地保存了香蕉。这些多功能特性说明了这种薄膜作为一种环保的活性包装解决方案的潜力，以保持香蕉的美学质量，并通过减少乙烯积累延长其保质期。

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来源期刊

Food Packaging and Shelf Life Agricultural and Biological Sciences-Food Science

CiteScore

14.00

自引率

8.80%

发文量

214

审稿时长

70 days

期刊介绍： Food packaging is crucial for preserving food integrity throughout the distribution chain. It safeguards against contamination by physical, chemical, and biological agents, ensuring the safety and quality of processed foods. The evolution of novel food packaging, including modified atmosphere and active packaging, has extended shelf life, enhancing convenience for consumers. Shelf life, the duration a perishable item remains suitable for sale, use, or consumption, is intricately linked with food packaging, emphasizing its role in maintaining product quality and safety.