Zahari Izalin, Ferawati Ferawati, Purhagen Jeanette K, Rayner Marilyn, Ahlström Cecilia, Helstad Amanda, Östbring Karolina
Department of Food Technology Engineering and Nutrition, Lund University, Naturvetarvägen 12, 22362 Lund, Sweden.
Malaysian Agricultural Research and Development Institute (MARDI), Persiaran MARDI-UPM, Serdang 43400, Selangor, Malaysia.
Foods. 2021 Oct 9;10(10):2397. doi: 10.3390/foods10102397.
Rapeseed protein is not currently utilized for food applications, although it has excellent physicochemical, functional, and nutritional properties similar to soy protein. Thus, the goal of this study was to create new plant-based extrudates for application as high-moisture meat analogs from a 50:50 blend of rapeseed protein concentrate (RPC) and yellow pea isolate (YPI) using high-moisture-extrusion (HME) cooking with a twin-screw extruder to gain a better understanding of the properties of the protein powders and resulting extrudates. The effects of extrusion processing parameters such as moisture content (60%, 63%, 65%, 70%), screw speed (500, 700, and 900 rpm), and a barrel temperature profile of 40-80-130-150 °C on the extrudates' characteristics were studied. When compared to the effect of varying screw speeds, targeted moisture content had a larger impact on textural characteristics. The extrudates had a greater hardness at the same moisture content when the screw speed was reduced. The specific mechanical energy (SME) increased as the screw speed increased, while increased moisture content resulted in a small reduction in SME. The lightness (*) of most samples was found to increase as the target moisture content increased from 60% to 70%. The RPC:YPI blend was equivalent to proteins produced from other sources and comparable to the FAO/WHO standard requirements.
目前油菜籽蛋白尚未用于食品应用,尽管它具有与大豆蛋白相似的优异物理化学、功能和营养特性。因此,本研究的目标是使用双螺杆挤出机进行高水分挤压(HME)烹饪,以50:50的菜籽浓缩蛋白(RPC)和黄豌豆分离蛋白(YPI)混合物为原料,制造新型植物基挤出物,用作高水分肉类替代品,从而更好地了解蛋白粉和所得挤出物的特性。研究了挤出加工参数,如水分含量(60%、63%、65%、70%)、螺杆转速(500、700和900转/分钟)以及40-80-130-150°C的料筒温度曲线对挤出物特性的影响。与螺杆转速变化的影响相比,目标水分含量对质地特性的影响更大。当螺杆转速降低时,相同水分含量下的挤出物硬度更大。比机械能(SME)随着螺杆转速的增加而增加,而水分含量的增加导致SME略有降低。发现大多数样品的亮度(*)随着目标水分含量从60%增加到70%而增加。RPC:YPI混合物等同于其他来源生产的蛋白质,并且符合粮农组织/世界卫生组织的标准要求。