低温脱溶:对大米蛋白的物理化学,功能和结构性质的影响
Surya Tushir1,2, Deep Narayan Yadav1, Rajeev Kumar Kapoor2
1ICAR- Central Institute of Post-Harvest Engineering and Technology, Ludhiana, Punjab 141004 India.
Journal of food science and technology
|February 8, 2024
概括
脱油大米 (LTDRB) 的低温脱溶剂改善了蛋白质的提取和质量. 与高温方法相比,这种方法产生更高的蛋白质提取效率和更好的功能性质.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 蛋白质化学 蛋白质化学
背景情况:
- 脱油的米是一种有价值的蛋白质来源.
- 高温加工使米蛋白质变质,阻碍了提取和经济可行性.
研究的目的:
- 为了评估脱油大米 (LTDRB) 的低温脱溶法,以提取蛋白质.
- 为了比较来自LTDRB的蛋白质产量,纯度和特性与高温脱硫脱油大米 (HTDRB).
主要方法:
- 在pH值11.0,52分钟,58°C时从LTDRB中优化蛋白质提取.
- 分析了蛋白质提取效率,产量和纯度.
- 评估了蛋白质的特性,包括颜色,溶解度,乳化,发泡和变性度.
- 利用扫描电子显微镜 (SEM) 和粒子大小分析.
主要成果:
- 最佳的LTDRB蛋白质提取实现了54.0%的效率,7.23%的产量和78.70%的纯度.
- LTDRB蛋白质表现出更好的颜色,溶解度和发泡能力/稳定性.
- HTDRB蛋白显示出更好的吸收和乳化特性.
- 与HTDRB蛋白相比,LTDRB蛋白具有较低的变性和较小的颗粒大小.
结论:
- 低温脱溶剂增强了从去油中提取蛋白质的产量和质量.
- LTDRB加工提供了一种更经济,更有效的方法来获得具有理想功能属性的高质量大米蛋白.
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