Zhao Xiaomin, Ren Xingyu, Li Haoming, Zhang Bin, Fan Xiaojing, Feng Xianchao
College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
Food Res Int. 2025 Nov;219:117008. doi: 10.1016/j.foodres.2025.117008. Epub 2025 Jul 13.
Development of effective, safe, and degradable food packaging is essential to meet the demands of consumers and to ensure the continued growth of the food industry. In this study, superabsorbent bioactive aerogels based on cellulose and polyvinyl alcohol combined with the antibacterial bioactive extracts extracted from Portulaca oleracea were fabricated for the preservation of chilled meats. The main physicochemical and mechanical properties of the bioactive aerogels were characterized and evaluated. The aerogels had remarkable water and oil sorption abilities and excellent antibacterial capacities, which could significantly delay spoilage of the chilled meat. Compared with commercialized absorbent pads, the bioactive aerogels effectively delayed color changes and retarded the lipid oxidation of meat, and decreased the growth of bacterium during the storage time. The microbial community analysis showed that the bioactive aerogels treatments have significant impacts on the microbial flora of chilled meat, which can significantly inhibit the growth of Pseudomonas and Escherichia, two primary spoilage microorganisms. These findings suggested that the bioactive aerogels can effectively extend the shelf-life of chilled meat and have great application potential in novel active packaging.
开发有效、安全且可降解的食品包装对于满足消费者需求以及确保食品行业的持续发展至关重要。在本研究中，基于纤维素和聚乙烯醇并结合从马齿苋中提取的抗菌生物活性提取物制备了超吸水性生物活性气凝胶，用于冷藏肉的保鲜。对生物活性气凝胶的主要物理化学和机械性能进行了表征和评估。该气凝胶具有显著的水和油吸附能力以及优异的抗菌能力，能够显著延缓冷藏肉的腐败。与商业化吸水垫相比，生物活性气凝胶有效延缓了肉的颜色变化，抑制了肉的脂质氧化，并在储存期间减少了细菌的生长。微生物群落分析表明，生物活性气凝胶处理对冷藏肉的微生物菌群有显著影响，能够显著抑制两种主要腐败微生物假单胞菌和大肠杆菌的生长。这些研究结果表明，生物活性气凝胶能够有效延长冷藏肉的保质期，在新型活性包装中具有巨大的应用潜力。
