在以大豆蛋白分离剂为基础的肉类类似物中,酸增强了纤维的形成
Haoqiang Wang1, Shunjing Luo1, Xiuting Hu1
1State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China; International Institute of Food Innovation Co. Ltd, Nanchang 330200, Jiangxi, China.
Food chemistry
|April 18, 2025
概括
酸通过增加交叉链接来改善肉类类别中的大豆蛋白分离物 (SPI) 纤维形成. 0.06 mol/kg SPI 的最佳度增强了纹理和水结合,创造了更好的类似肉类的结构.
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
背景情况:
- 豆蛋白分离物 (SPI) 是植物性肉类类别的常见基础.
- 改善基于SPI的肉类类别的纤维质感对于消费者接受至关重要.
研究的目的:
- 为了研究酸对高湿度挤出SPI肉类类似物中的纤维形成的影响.
- 为了确定酸的最佳度,以增强SPI肉类模拟特性.
主要方法:
- 具有不同酸度的SPI的高湿度挤出加工.
- 使用异性质指数分析肉类模拟结构的分析.
- 测量物理性质,包括硬度,性和水结合性.
- 使用SDS-PAGE研究分子变化,并分析自由硫和氨基群.
主要成果:
- 酸显著提高了SPI肉类类型的异性质指数,特别是0.06mol/kg SPI.
- 增加的硬度,性,和水结合能力被观察到加酸添加.
- 酸在挤出和融化过程中增加了能量输入和流速差异.
- SDS-PAGE和减少的自由硫基/氨基群表明酸诱导的SPI的共价交叉链接.
结论:
- 酸通过共价交联,有效地促进基于SPI的肉类类型中的纤维形成.
- 增强纤维形成和改善纹理的最佳度是0.06mol/kg SPI.
- 酸为开发改进的植物性肉类替代品提供了一个有希望的策略.
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