压力主导的蒸汽爆炸用于修改纹理大豆蛋白:结构和体外消化动力学
Yingning Yao1, Yixin Zheng2, Yi Zhang3
1College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Engineering Research Center of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China.
Food research international (Ottawa, Ont.)
|February 23, 2024
概括
蒸汽爆炸 (SE) 处理改变了纹理大豆蛋白 (TSPs) 的结构,影响了它们的消化能力. 较低的SE压力降低了胃消化,而较高的压力提高了肠道消化,这表明改性TSP作为功能性食品成分的潜力.
科学领域:
- 食品科学 食品科学 食品科学
- 蛋白质化学 蛋白质化学
- 生物技术是生物技术.
背景情况:
- 纹理大豆蛋白 (TSPs) 是多功能食品成分,但它们的有限可用性需要加工创新.
- 了解处理如何影响TSP结构和功能对于扩展其应用至关重要.
研究的目的:
- 调查蒸汽爆炸 (SE) 压力对纹理大豆蛋白 (TSPs) 的结构性质和体外消化能力的影响.
- 探索SE修改TSP作为功能性食品成分的潜力.
主要方法:
- 纹理大豆蛋白 (TSPs) 在不同压力 (0,0.5,1.0,1.5MPa) 下经受蒸汽爆炸 (SE) 处理.
- 结构分析包括评估二次结构 (β-sheet,α-helices,β-turns) 和热稳定性.
- 在体外消化能力在胃和肠道阶段进行了评估.
主要成果:
- 在0.5和1.0 MPa的SE显著改变了TSP的二次结构,增加了β-sheet,减少了α-helices和β-turns.
- 这些结构变化导致脆性增加,热稳定性降低,消化阻力降低.
- 在1.0和1.5MPa时,SE降低了胃水解,但增加了肠道水解.
结论:
- 蒸汽爆炸压力显著调节纹理大豆蛋白的结构特征和体外消化能力.
- 经SE修改的TSP表现出改变的消化特征,有可能被用作食品应用中的功能成分.
相关概念视频
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