Caroline Cagnin, Nascimento Morais Danielly, Helena Prudencio Sandra
Ciência e Tecnologia de Alimentos, Universidade Federal de Goiás, Goiânia, Goiás, Avenida Esperança, s/n, Campus Universitário, 74690-900, Brazil; Ciência e Tecnologia de Alimentos, Centro de Ciências Agrárias, Universidade Estadual de Londrina, Celso Garcia Cid, PR-445, Km 380 - University Campus, Londrina, PR 86057-970, Brazil.
Ciência e Tecnologia de Alimentos, Centro de Ciências Agrárias, Universidade Estadual de Londrina, Celso Garcia Cid, PR-445, Km 380 - University Campus, Londrina, PR 86057-970, Brazil.
Food Res Int. 2025 Nov;219:116987. doi: 10.1016/j.foodres.2025.116987. Epub 2025 Jul 1.
The objective of the research was to employ extrusion to increase the yield of simulated gastrointestinal digestion of protein corn gluten meal (CG). A single-screw extruder and a full factorial design with two center points were used. The optimal extrusion parameters were 40 % sample moisture, 140 °C and 54 rpm, resulting in a gastrointestinal digestion yield of 37.3 %. The influence of the optimized extrusion condition on other bio-functional properties of CG after simulated gastrointestinal digestion was assessed. Unextruded undigested CG (control), unextruded digested CG, extruded undigested CG, and extruded digested CG were compared in terms of bio-functional properties. Extruded digested CG showed higher nitrogen content, degree of hydrolysis, digestibility, ABTS scavenging activity, reducing capacity, and angiotensin-converting enzyme inhibitory activity than the other samples. In addition to facilitating the gastrointestinal digestion of CG proteins, extrusion also increases their bioactive potential, adding value to this residue for use in human food.
本研究的目的是采用挤压法提高蛋白玉米蛋白粉（CG）模拟胃肠道消化的产率。使用了单螺杆挤出机和具有两个中心点的全因子设计。最佳挤压参数为40%的样品水分、140°C和54转/分钟，胃肠道消化产率为37.3%。评估了优化后的挤压条件对模拟胃肠道消化后CG其他生物功能特性的影响。比较了未挤压未消化的CG（对照）、未挤压消化的CG、挤压未消化的CG和挤压消化的CG的生物功能特性。挤压消化的CG比其他样品表现出更高的氮含量、水解度、消化率、ABTS清除活性、还原能力和血管紧张素转换酶抑制活性。除了促进CG蛋白的胃肠道消化外，挤压还增加了它们的生物活性潜力，为这种残留物用于人类食品增加了价值。
