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欧戈斯特调节了高湿度大豆-小麦蛋白质挤出物中的物理化学特性和形状变化
Yang Gao1, Song Yan1, Kaixin Chen1
1Food Processing Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.
Foods (Basel, Switzerland)
|November 13, 2025
概括
补充埃尔戈斯特 (ERG) 通过增强纹理和纤维结构来改善植物性肉类类别. 最佳的ERG水平调节蛋白质特性,改善挤出性能和肉类替代品的产品质量.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 植物性肉类类似物 (PBMA) 需要改进质地和加工特性.
- 大豆蛋白分离物 (SPI) 和小麦质 (WG) 是PBMA的关键成分.
- 欧戈斯特醇 (ERG) 是一种具有潜在功能性质的类固醇.
研究的目的:
- 研究不同埃尔戈斯特醇 (ERG) 度对高湿度挤出大豆蛋白分离物 (SPI) 和小麦质 (WG) 的影响.
- 分析ERG对物理化学性质,蛋白质构成和体外可消化的影响.
- 确定最佳的ERG水平,以提高植物性肉类类型的质量.
主要方法:
- SPI和WG的高湿度挤出加工具有0-2.0%的ERG.
- 风湿学分析 (粘度,动态模块).
- 结构分析 (形态,二次结构,热稳定性).
- 在体外消化性测试.
主要成果:
- ERG降低了原料粘度和模块,改善了融流动性并减少了挤出能量.
- 1.0%的ERG促进了明显的纤维形态,更浅的颜色和更柔软的纹理.
- 通过疏水性相互作用,ERG改变了蛋白质聚合,降低了热稳定性,并改变了二次结构.
- 在体外消化率显示U形曲线,最低消化率为1.0%ERG.
结论:
- 埃尔戈斯特 (ERG) 在挤出过程中有效调节SPI/WG的质和结构性质.
- 最佳的ERG度增强了植物性肉类类型的纤维结构和质地.
- ERG影响蛋白质的构成和消化能力,提供了一种提高PBMA质量的策略.
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