不同的凝剂对子油的物理化学特性和微观结构的影响
Zihan Yang1, Jingtao Cui1, Yonghuan Yun1
1School of Food Science and Engineering, Hainan University, Haikou, China.
子油油凝是使用乙烯基纤维素,β-sitosterol/γ-oryzanol和糖单酸盐开发的. β-sitosterol/γ-oryzanol oleogel 显示出优越的结合油和氧化稳定性,为食品应用提供了潜力.
科学领域:
- 食品科学 食品科学 食品科学
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 子油的特性 (高和脂肪,低点) 适合塑料脂肪的加工.
- 使用子油 (CO) 与乙烯基纤维素 (EC),β-sitosterol/γ-oryzanol (PS) 和甘单酸盐 (MG) 作为凝剂进行了研究.
- 这项研究的目的是了解这些子油基 (EC-COO,PS-COO,MG-COO) 的形成机制.
研究的目的:
- 为了研究子油油的物理化学性质,微观形态和氧化稳定性.
- 阐明使用不同凝剂制造的油脂凝的形成机制.
- 评估这些油脂凝在食品产品应用中的潜力.
主要方法:
- 使用子油和三种不同的凝剂 (EC,PS,MG) 制备油凝.
- 油凝属性的表征包括机械强度,油结合能力,硬度,弹性和氧化稳定性.
- 分析晶体结构 (β和β') 和热力学行为.
主要成果:
- 这三种油凝系统 (EC-COO,PS-COO,MG-COO) 都表现出与β和β'晶体形式的固体状行为.
- PS-COO表现出优异的油固定,高的油结合能力,中等硬度和良好的弹性.
- MG-COO表现出较低的稳定性,而PS-COO和MG-COO提供了抗氧化作用,可以抵御CO氧化. PS-COO和EC-COO具有更好的热力学稳定性.
结论:
- 成功制备了三种不同的子油基油凝.
- 机械强度,储存模量和热力学稳定性取决于凝剂的度.
- 聚乙烯-COO,特别是15%的聚乙烯添加剂,表现出强大的油结合和氧化稳定性,表明食品应用的巨大潜力.
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