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用于樱桃保鲜的具有紫外线防护和微生物防护功能的双膜复合食品包装的开发。

Development of Double-Film Composite Food Packaging with UV Protection and Microbial Protection for Cherry Preservation.

作者信息

Wang Han, Liao Yanjing, Zhu Guida, Wang Longwen, Chen Zihan, Li Xue, Wang Chao, Yu Jing, Song Ping

机构信息

School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.

Science Center for Future Food, Jiangnan University, Wuxi 214122, China.

出版信息

Foods. 2025 Jun 27;14(13):2283. doi: 10.3390/foods14132283.

Abstract

This study develops a novel dual-layer chitosan (CS)/pectin film incorporating grape skin anthocyanin extract (GSAE) and lignin to address critical limitations in cherry preservation. Unlike traditional methods that leave harmful residues, this bilayer design separately integrates functional components: GSAE for targeted antioxidant/antibacterial action and lignin for ultraviolet (UV) blocking. This targeted incorporation enables synergistic performance unattainable with single-layer or conventional approaches. The films, fabricated with lignin concentrations from 1% to 15% (/), demonstrated excellent mechanical integrity (assessed with structural characterization), optimized gas barrier performance, and effective UV attenuation (achieved via lignin incorporation). Antibacterial analyses confirmed substantial inhibition against and . Crucially, cherry preservation tests showed that the 15% lignin film (PG/CL15%) reduced weight loss, preserved firmness, and extended shelf life by 8 days-a significant quantitative improvement over uncoated fruit. Structural characterization (TGA, FT-IR, and XRD) verified successful GSAE/lignin embedding via hydrogen bonding. Beyond cherries, this dual-layer, bio-based design offers a promising template for the active packaging of other perishable produce sensitive to oxidation, microbial spoilage, and UV degradation, which enhances its industrial relevance.

摘要

本研究开发了一种新型双层壳聚糖(CS)/果胶薄膜,该薄膜含有葡萄皮花青素提取物(GSAE)和木质素,以解决樱桃保鲜中的关键限制问题。与会留下有害残留物的传统方法不同,这种双层设计分别整合了功能成分:用于靶向抗氧化/抗菌作用的GSAE和用于紫外线(UV)阻隔的木质素。这种有针对性的整合实现了单层或传统方法无法达到的协同性能。用浓度为1%至15%(/)的木质素制备的薄膜表现出优异的机械完整性(通过结构表征评估)、优化的气体阻隔性能和有效的紫外线衰减(通过加入木质素实现)。抗菌分析证实对[具体菌种1]和[具体菌种2]有显著抑制作用。至关重要的是,樱桃保鲜试验表明,含15%木质素的薄膜(PG/CL15%)减少了重量损失,保持了硬度,并将货架期延长了8天——与未涂层水果相比有显著的定量改善。结构表征(热重分析、傅里叶变换红外光谱和X射线衍射)证实通过氢键成功嵌入了GSAE/木质素。除了樱桃,这种双层生物基设计为其他易氧化、易受微生物腐败和紫外线降解影响的易腐农产品的活性包装提供了一个有前景的模板,从而提高了其工业相关性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c8b3/12249171/129a6849e1d3/foods-14-02283-g001.jpg

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本文引用的文献

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Improving Thermal and Light Stability of Black Grape Anthocyanins Using Cobalt Complexation.
Prev Nutr Food Sci. 2024 Dec 31;29(4):495-503. doi: 10.3746/pnf.2024.29.4.495.
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Comparative metabolomics profiling highlights unique color variation and bitter taste formation of Chinese cherry fruits.
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