用贝和结形成的水凝:对pH的反应,质和凝机制
1Department of Food Science, University of Tennessee, Knoxville, TN, USA.
International journal of biological macromolecules
|April 3, 2025
概括
新的pH响应性水凝是使用贝和制成的. 这些新型水凝在中性pH值附近表现出显著的体积变化,表明食品和非食品应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
背景情况:
- 贝是一种天然的pH响应性聚合物,但基于贝的pH响应性水凝尚未开发.
- 响应pH的水凝对于各种应用非常有价值,因为它们能够随着pH的变化而改变性能.
研究的目的:
- 开发新的pH响应型水凝,使用贝和.
- 为了研究的度对水凝特性和pH响应性的影响.
- 阐明调节凝形成和行为的分子相互作用和机制.
主要方法:
- 通过使用葡萄糖-δ-乳将pH值从12.0转移到6.2-6.4形成水凝.
- 在不同pH值 (6.0-8.0) 和离子强度的缓冲器中,水凝体积变化的表征.
- 动态气动学试验和纹理特征分析,以评估机械性能.
- 凝电泳来研究贝和之间的分子相互作用.
主要成果:
- 已经成功地形成了含有0.50-4.0%锡的贝水凝.
- 水凝在中性pH值附近表现出pH反应性,在pH值6.0-6.5时收缩,在pH值7.5-8.0时膨胀/溶解.
- 齐恩度影响了凝和网络强度,最佳度增强了pH诱导的体积变化.
- 鉴定出疏水性相互作用是水凝形成的主要驱动力,其次是水凝键.
结论:
- 成功合成了具有接近中性pH的可调节pH响应的新型贝-zein水凝.
- 这些水凝显示出在食品和非食品领域具有创新应用的潜力.
- 这项研究提供了对贝-zein水凝形成和pH响应行为的分子基础的见解.
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