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乙烯纤维素核心,OSA粉电喷式微囊增强装载鱼油的氧化稳定性

Elnaz Z Fallahasghari¹, Peter Reimer Stubbe¹, Ioannis S Chronakis¹

¹DTU-Food, Research Group for Food Production Engineering, Laboratory of Nano-BioScience, Technical University of Denmark, Henrik Dams Allé, B202, 2800 Kongens Lyngby, Denmark.

Nanomaterials (Basel, Switzerland)

|March 27, 2024

概括

同轴电喷涂产生核心微囊,显著提高鱼肝油 (CLO) 的氧化稳定性15倍. 单轴电气喷雾提供了适度的2.9倍改善,证明了封装对稳定鱼油的有效性.

科学领域:

食品科学与技术食品科学与技术
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

鱼肝油 (CLO) 富含omega-3脂肪酸,但容易氧化,限制其保质期和有效性.
微封装是保护敏感油免受降解的关键策略.
电子喷涂为微封装提供了一种多功能方法,但不同的配置可能会产生不同的结果.

研究的目的:

用同轴和单轴电喷技术研究囊化效率和鱼肝油 (CLO) 的氧化稳定性.
通过这两种方法生产的微囊的结构性质和物理特征进行比较.
评估微囊结构对CLO抗氧化保护的影响.

主要方法:

使用同轴和单轴电喷涂,使用乙纤维素和酸酸 (OSA) 改性粉作为墙壁材料.
使用孔焦显微镜,拉曼光谱和原子力显微镜来描述微囊结构,油位,表面粘附和机械性能.
差分扫描热度计 (DSC) 评估了与非封装油相比,封装CLO的氧化稳定性.
有限元法 (FEM) 分析了在电喷过程中电场强度的分布.

主要成果:

同轴电喷涂产生了核心外 (H-ECLO) 微囊,CLO仅限于核心,而单轴 (ECLO) 微囊则在表面显示CLO.
与ECLO微囊相比,H-ECLO微囊表现出明显较低的表面粘附力和更高的Young模量.
H-ECLO微囊提高了CLO的氧化稳定性约15倍,而ECLO微囊提供了2.9倍的增强.
同轴电喷喷产生了更有利的电场分布,用于微囊形成.

结论:

同轴电喷技术有效地创建了一个核心外结构,大大提高了鱼肝油的氧化稳定性.
防止微囊表面存在油脂对于最大限度地提高氧化保护至关重要.
电子喷射参数和配置在确定微囊的物理性质和保护能力方面发挥着至关重要的作用.

关键词:

OSA 改性粉同轴电气喷雾器的同轴电气喷雾器乙烯基纤维素的乙烯基纤维素.鱼油鱼油是一种鱼油.微封装方式的微封装.氧化稳定性氧化稳定性

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