高内相乳液通过超声波的帮助稳定素-纳米纤维素复合物
Zhangyue Shen1, Xiuqin Wang1, Xianbing Xu1
1National Engineering Research Center for Seafood, State Key Laboratory of Marine Food Processing and Safety Control, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Seafood Deep Processing, Liaoning Province Collaborative Innovation Center for Marine Food Deep Processing, Dalian Technology Innovation Center for Chinese Pre-made Food, College of Food Science and Technology, Dalian Polytechnic University, Dalian, China.
超声处理增强了素 (CA) 和纤维素纳米晶体 (CNC) 的相互作用,改善了稳定,高内部相乳液 (HIPEs) 的接口特性,具有更好的纹理和减少氧化.
科学领域:
- 材料科学 材料科学 材料科学
- 合体和表面化学
- 食品科学 食品科学 食品科学
背景情况:
- 纤维素纳米晶 (CNC) 是一个有前途的生物材料.
- 素 (CA) 是一种具有乳化特性的蛋白质.
- 提高CA-CNC复合材料的接口性能是先进应用的关键.
研究的目的:
- 研究超声波处理对素修饰纤维素纳米晶体 (CA-CNC) 的影响.
- 评估超声波对CA-CNC的界面特性的影响.
- 评估U-CA-CNC作为高内部相乳液 (HIPEs) 稳定剂的性能.
主要方法:
- 使用超声波 (U) 用素 (CA) 修改纤维素纳米晶体 (CNC).
- 粒子大小,网络形成和键的表征.
- 测量界面特性 (接触角度,界面张力).
- 通过U-CA-CNC稳定高内部相乳液 (HIPEs) 的制备和表征.
主要成果:
- 超声处理 (U-CA-CNC) 减少了粒子大小,形成了统一的网络.
- 观察到CA和CNC之间的增强结.
- U-CA-CNC显著改善了接口特性,增加了接触角度和降低了接口张力.
- 由U-CA-CNC稳定的HIPE (特别是在CA:CNC比率为1:1,5或1:2的HIPE) 呈现出更小的液滴大小,更高的弹性 (G') 和粘度.
- 这些HIPE表现出极好的稳定性,低氧化 (TBARS),并且在倒置时保持稳定15天.
结论:
- 超声波有效地增强了素和纤维素纳米晶体之间的相互作用.
- 修改后的U-CA-CNC表现出优越的界面特性,从而改善了HIPE稳定性.
- 开发的U-CA-CNC系统提供了一个有前途的方法,用于创建稳定,高性能HIPEs,具有理想的质性质和减少氧化.
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