具体尺寸的乳清蛋白颗粒的物理化学特征,形态学和滑性能,通过酸或离子聚合
Mengya Sun1, Peipei Ma1, Cunshe Chen1
1Key Laboratory of Geriatric Nutrition and Health, Beijing Technology and Business University (BTBU), Beijing 100048, China; National Soybean Processing Industry Technology Innovation Center, Beijing Technology & Business University (BTBU), Beijing 100048, China.
International journal of biological macromolecules
|August 16, 2023
概括
使用pH或处理制造乳清蛋白微粒. 颗粒的大小和特性影响它们的滑能力,粘度主导小颗粒,性质主导大颗粒.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 食品科学 食品科学 食品科学
背景情况:
- 了解生物聚合物基微粒的三元学性质对于开发可持续滑剂至关重要.
- 乳清蛋白是工程微粒的有希望的来源,因为它们的可用性和功能性质.
研究的目的:
- 为了研究颗粒特征,如大小和表面特性,如何影响乳清蛋白微粒的滑能力.
- 为了比较两种不同的制备方法 (pH降低和离子添加) 对乳清蛋白微粒特性和滑性的影响.
主要方法:
- 通过降低pH值或添加离子来控制乳清蛋白微粒 (~300,~700,~1900nm) 的制备.
- 物理化学 (泽塔潜力,疏水性),形态 (聚合,不规则性) 和三极学性质的表征.
- 悬浮物粘度的分析及其与颗粒大小和制备方法的相关性.
主要成果:
- 两种疗法都减少了泽塔潜力和表面水性;离子对泽塔潜力有更显著的影响.
- 悬浮的粘度随着颗粒大小的增加而增加,而离子诱导的颗粒比酸诱导的颗粒具有更高的粘度.
- 颗粒聚合和不规则性随大小增加;滑行为随颗粒类型和大小范围而变化.
结论:
- 颗粒大小和制备方法显著改变了乳清蛋白微粒的特性和滑性能.
- 粘度是小型颗粒滑的关键因素,而颗粒特征对较大的颗粒变得更为主导.
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