Adımcılar Veselina, Torlak Emrah, Erim F Bedia
Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 34469, Turkey.
Department of Molecular Biology and Genetics, Necmettin Erbakan University, Meram, Konya 42090, Turkey.
ACS Omega. 2025 Apr 29;10(23):24642-24654. doi: 10.1021/acsomega.5c01438. eCollection 2025 Jun 17.
Materials derived from renewable and natural resources, such as biopolymers, are increasingly favored over synthetic polymers in food packaging applications. Biopolymers integrated with bioactive compounds can eliminate the need for preservatives, providing nontoxic and safer alternatives. Furthermore, these biopolymers have the potential to facilitate real-time monitoring of food freshness through the incorporation of pH-sensitive natural extracts. In this study, a composite biopolymeric film was fabricated using alginate and pectin, with the film's properties further enhanced by the addition of purple basil extract. The film's indicator functionality was evaluated by monitoring the spoilage of skinless chicken breasts under refrigerated conditions. A visual color change was observed in the film, driven by the pH-sensitive properties of the purple basil extract, which corresponded with the progression of food spoilage. The resulting material presents a safe, edible, and cost-effective alternative to conventional packaging, paving the way for more sustainable and secure food packaging solutions.
源自可再生和自然资源的材料，如生物聚合物，在食品包装应用中越来越受到青睐，优于合成聚合物。与生物活性化合物整合的生物聚合物可以消除对防腐剂的需求，提供无毒且更安全的替代品。此外，通过加入对pH敏感的天然提取物，这些生物聚合物有潜力促进对食品新鲜度的实时监测。在本研究中，使用藻酸盐和果胶制备了一种复合生物聚合物薄膜，并通过添加紫罗勒提取物进一步增强了薄膜的性能。通过监测冷藏条件下无皮鸡胸肉的变质情况来评估薄膜的指示剂功能。由于紫罗勒提取物的pH敏感特性，在薄膜中观察到了视觉颜色变化，这与食品变质的进程相对应。所得材料为传统包装提供了一种安全、可食用且经济高效的替代品，为更可持续和安全的食品包装解决方案铺平了道路。
