太阳花茎基纤维素与不同的全形纳米晶体用于油在水乳液
Tianqi Feng1, Chen Yan1, Fengyi Li2
1National Key Laboratory for the Development and Utilization of Forest Food Resources, Nanjing Forestry University, Nanjing 210037, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
International journal of biological macromolecules
|March 29, 2025
概括
纤维素纳米纤维 (CNF) 稳定皮克林乳液,但它们的有效性取决于晶体类型和面积比. 纤维CNF I表现出更好的乳化,而CNF II则产生更小的液滴,但长期稳定性较差.
科学领域:
- 材料科学 材料科学 材料科学
- 合体和表面化学
- 纳米技术纳米技术
背景情况:
- 皮克林乳液使用环状颗粒作为稳定剂,与传统表面活性剂相比具有优势.
- 纤维素纳米纤维 (CNF) 由于其稳定性和低剂量,越来越多地被探索为食品,化品和药品中的稳定剂.
- CNF的乳化性能受到其晶体形状和面积比 (长径比) 的影响.
研究的目的:
- 研究不同类型的纤维素晶体 (CNF I,CNF II,CNF III) 对皮克林乳液稳定性的影响.
- 为了比较由CNF稳定的不同形态和面积比率的皮克林乳液的乳化特性和稳定性.
主要方法:
- 使用三种不同类型的纤维素纳米纤维 (CNF I,CNF II,CNF III) 作为稳定剂制备皮克林乳液.
- 包括纤维状 (CNF I,面积比为95.3) 和圆形/针形 (CNF II,面积比为11.3;CNF III,面积比为44.1) 在内的CNF形态的表征.
- 评估乳液特性,如滴滴大小 (D3,2) 和长期稳定性超过14天,并测量泽塔电位.
主要成果:
- CNF I,其高的长度-直径比,显示出优越的乳化性能.
- 由CNF II稳定的皮克林乳液表现出最小的滴粒大小,约为CNF I和CNF III稳定的乳液的一半.
- 与CNF I和CNF III稳定的乳液相比,通过CNF II稳定的乳液在14天后稳定性显著降低,这可能是由于绝对泽塔电位较低.
结论:
- 纤维素纳米纤维的晶体形状和面积比极大地影响了它们作为皮克林乳液稳定剂的性能.
- 虽然CNF II产生较小的液滴,但CNF I和CNF III提供更好的长期乳液稳定性.
- 这项研究提高了对基于纤维素的皮克林稳定机制的理解,指导了针对特定工业应用的CNF的选择.
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