Abstract The preparation route of the water-soluble rice glutelin-glutelin (extracted from two subspecies of Japonica and Indica rice, respectively) system is proposed and tested in laboratory-scale, which can potentially be scaled up for industrial production. The two-components in highly alkaline condition was carefully acidified to neutral to produce whole rice glutelin. The interfacial properties of the system can be adjusted by changing the ratio of rice glutelin origins (Japonica group (JRG) or Indica group (IRG)), so that the surface hydrophobicity can be reduced to expose the charged groups. The created protein structure is robust and could maintain desirable wettability after single droplet drying and freeze-drying. To date, the application of plant proteins has been largely limited by the poor solubility of hydrophobic aggregates. The proposed JRG-IRG system is a crucial step toward aqueous rice protein materials. The potential to prepare aqueous composites was also demonstrated by synergistic modification of plant proteins from different subspecies.

中文翻译：

---

水溶性全米谷蛋白的设计：粳稻和籼稻两个亚种的交会

摘要 提出了水溶性大米谷蛋白-谷蛋白（分别从粳稻和籼稻两个亚种中提取）体系的制备路线，并在实验室规模进行了测试，具有大规模工业化生产的潜力。将高碱性条件下的两种成分小心地酸化至中性以生产全米谷蛋白。该体系的界面性质可以通过改变稻谷蛋白来源（粳稻基团（JRG）或籼稻基团（IRG））的比例来调节，从而降低表面疏水性以暴露带电基团。所产生的蛋白质结构坚固，在单滴干燥和冷冻干燥后仍能保持理想的润湿性。迄今为止，植物蛋白的应用在很大程度上受到疏水性聚集体溶解性差的限制。拟议的 JRG-IRG 系统是迈向水性大米蛋白质材料的关键一步。来自不同亚种的植物蛋白的协同修饰也证明了制备水性复合材料的潜力。