Active packaging film based on chitosan/gelatin blend incorporated with mango peel carbon dots: Properties and shelf life extension of minced pork.

IF 7.7 1区 化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY International Journal of Biological Macromolecules Pub Date : 2025-02-01 Epub Date: 2024-12-11 DOI:10.1016/j.ijbiomac.2024.138692
Arunachalasivamani Ponnusamy, Ajahar Khan, Thummanoon Prodpran, Jun Tae Kim, Soottawat Benjakul, Jong-Whan Rhim
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Abstract

Active packaging is essential for reducing food quality loss and ensuring consumer safety. Recently, carbon dots, synthesized from agricultural bio-wastes, have been used as active nanofillers. Mango peels, generally discarded as waste, can serve as potential precursor for synthesis of carbon dots. Mango peel carbon dots (MPCD) were prepared and characterized. Characteristics of active film based on chitosan (CS)/fish gelatin (FG) blend incorporated with MPCD at different concentrations (1, 3, and 5 wt%) were investigated. MPCD with augmenting concentrations enhanced mechanical properties of CS/FG film. Film containing 5 % MPCD had 15 % higher tensile strength than the control (without MPCD). The film containing MPCD showed the improved antioxidant activity, antimicrobial and UV barrier properties. The pouch (5 × 5 cm2) made from film added with 5 % MPCD via heat sealing was used for packaging minced pork. Minced pork packed in the pouch showed lower bacterial growth (below 6 log CFU/g) and chemical changes than that packed in polyethylene pouch during 15 days of storage at 4 °C. Therefore, the conversion of mango peel into valuable carbon dots promotes a zero-waste sustainable approach in line with the biocircular economy. Active pouch could be employed as novel biodegradable active and green packaging for the food industry.

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壳聚糖/明胶混合芒果皮碳点的活性包装膜:肉末的性能和保质期延长。
活性包装对于减少食品质量损失和确保消费者安全至关重要。最近,从农业生物废料中合成的碳点被用作活性纳米填料。通常作为废物丢弃的芒果皮可以作为合成碳点的潜在前体。本文制备了芒果皮碳点(MPCD)并对其进行了表征。研究了基于壳聚糖(CS)/鱼明胶(FG)混合物的活性薄膜与不同浓度(1、3 和 5 wt%)的 MPCD 的特性。随着 MPCD 浓度的增加,CS/FG 薄膜的机械性能得到了提高。含 5% MPCD 的薄膜的拉伸强度比对照组(不含 MPCD)高 15%。含有 MPCD 的薄膜具有更好的抗氧化活性、抗菌性和紫外线阻隔性。用添加了 5% MPCD 的薄膜通过热封制成的小袋(5 × 5 cm2)包装碎猪肉。在 4 °C 下贮存 15 天期间,与聚乙烯袋包装的猪肉相比,该袋包装的猪肉碎显示出较低的细菌生长率(低于 6 log CFU/g)和化学变化。因此,将芒果皮转化为有价值的碳点促进了零废物的可持续发展,符合生物循环经济的理念。活性包装袋可作为新型可生物降解的活性绿色包装用于食品工业。
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来源期刊
International Journal of Biological Macromolecules
International Journal of Biological Macromolecules 生物-生化与分子生物学
CiteScore
13.70
自引率
9.80%
发文量
2728
审稿时长
64 days
期刊介绍: The International Journal of Biological Macromolecules is a well-established international journal dedicated to research on the chemical and biological aspects of natural macromolecules. Focusing on proteins, macromolecular carbohydrates, glycoproteins, proteoglycans, lignins, biological poly-acids, and nucleic acids, the journal presents the latest findings in molecular structure, properties, biological activities, interactions, modifications, and functional properties. Papers must offer new and novel insights, encompassing related model systems, structural conformational studies, theoretical developments, and analytical techniques. Each paper is required to primarily focus on at least one named biological macromolecule, reflected in the title, abstract, and text.
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