关键词: Active smart biomass film Chitosan Curcumin Freshness monitor Laurate esterified starch Pickering emulsion

来  源:   DOI:10.1016/j.ijbiomac.2024.133331

Abstract:
The multifunctional active smart biomass film was prepared by incorporating chitosan-adsorbed laurate esterified starch curcumin Pickering emulsion into the starch film matrix, with nano-cellulose serving as reinforcing agents. The mechanical and functional properties of the film were studied, and the film was used to monitor the freshness of pork. The results demonstrated a relatively uniform distribution of curcumin and Pickering emulsion droplets within the film matrix. Furthermore, the thermal stability was minimally impacted by the introduction of curcumin Pickering emulsion, while the tensile strength and tensile strain of the film were increased, and both its hydrophobicity and antioxidant properties were improved. The free radical scavenging rate reached 56.01 %, with sustained high antioxidant capacity even after 8 days. Additionally, the presence of curcumin provided the film with pH indicating ability and delayed pork spoilage. Therefore, this work provides an attractive strategy for constructing green, active, and smart biomass packaging films for meat packaging applications.
摘要:
通过将壳聚糖吸附的月桂酸酯酯化淀粉姜黄素Pickering乳液掺入淀粉膜基质中,制备了多功能活性智能生物质膜。纳米纤维素作为增强剂。薄膜的力学和功能性能进行了研究,这部电影被用来监测猪肉的新鲜度。结果证明姜黄素和Pickering乳液液滴在膜基质中相对均匀地分布。此外,加入姜黄素Pickering乳液对热稳定性的影响最小,同时薄膜的拉伸强度和拉伸应变增加,其疏水性和抗氧化性能均得到改善。自由基清除率达到56.01%,即使在8天后也具有持续的高抗氧化能力。此外,姜黄素的存在为薄膜提供了pH指示能力和延迟的猪肉腐败。因此,这项工作为建设绿色提供了一个有吸引力的策略,活跃,和用于肉类包装应用的智能生物质包装膜。
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