开发含有肉精油的PBAT/热塑性粉活性包装膜,具有不同的释放行为和抗菌活性
Yifan Tian1, Qiao Lei2, Fuxin Yang3
1College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
International journal of biological macromolecules
|February 9, 2024
概括
新的活性包装薄膜由聚乙烯基基合甲基酸盐/热塑性粉 (PBAT/TPS) 与肉精油 (CEO) 制成,其性能得到改善. 更高的热塑性粉含量增强了抗菌活性和大鱼的保存.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 聚合物科学 聚合物科学
背景情况:
- 活性包装膜对于延长食品的保质期至关重要.
- 聚乙烯基酸盐-联合甲酸盐) /热塑性粉 (PBAT/TPS) 混合物为包装应用提供可调节的特性.
- 结合天然抗菌剂,如肉精油 (CEO),可以增强活性包装的功能.
研究的目的:
- 用于制造含有CEO的PBAT/TPS活性包装薄膜.
- 调查不同TPS内容对电影产权和CEO发布的影响.
- 评估这些活性薄膜在保护大鱼的有效性.
主要方法:
- 融混合和挤压造用于片制造.
- 准备和描述了含有0-50%TPS的电影.
- 分析了水蒸气和氧气透性,CEO保留和释放动力学.
- 评估了对大肠杆菌,黄金杆菌和S. putrefaciens的抗菌活性.
- 应用测试对大鱼的保存进行了应用测试.
主要成果:
- 将TPS含量从0%增加到50%,降低了氧气透性和增加了水蒸气透性.
- 随着TPS含量增加,CEO在电影中的保留率增加,而释放到食品模拟剂的速度加快.
- 电影显示了与CEO释放行为相关的不同抗菌活性.
- 带有CEO的PBAT/TPS膜有效抑制了大鱼中的蛋白质分解和微生物生长.
- 较高的TPS含量与对大鱼破坏的增强抑制作用相关.
结论:
- 含有CEO的PBAT/TPS活性膜可以针对特定的释放率和抗菌活性进行定制.
- 这些片显示出改善鱼类等易腐食品的保质期和安全性的巨大潜力.
- 该研究为开发先进的活性食品包装材料提供了一种新的方法.
相关概念视频
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...


