This work investigated the fluidized bed agglomeration of a plant protein powder blend using an açaí pulp binder in order to improve the physical and handling properties. The blend was prepared mixing isolated pea protein powder and concentrated rice protein powder. The influence of air temperature and binder flow rate on the moisture content, particle size and process yield was evaluated using a factorial design. The anthocyanins content, wettability and flowability of the powder was also evaluated. The agglomeration produced large granules with better physical properties, indicating that açaí pulp can be used as a binder. Statistical analysis showed that binder flow rate had the greatest influence on moisture content and process yield; air temperature had a greater effect on particle size. The optimum condition (T = 75 °C, Q = 2.0 mL/min) resulted in granules that were twice as large as the initial particles. Anthocyanins were incorporated (2.34 mg/100 g) with an acceptable moisture content (≤10%) and a high yield (>75%). Flowability was greater in the agglomerated powder than in the raw material with a wetting time reduction of about 77.0%. The resulting protein powder combines the properties of an instant powder with health and nutritional benefits.

这项工作研究了使用açaí纸浆粘合剂的植物蛋白粉混合物的流化床附聚，以改善物理和处理性能。通过混合分离的豌豆蛋白粉和浓缩大米蛋白粉来制备混合物。使用析因设计评估了空气温度和粘合剂流速对水分含量，粒度和工艺收率的影响。还评估了粉末的花色苷含量，润湿性和流动性。附聚产生的大颗粒具有更好的物理性能，表明阿萨伊纸浆可以用作粘合剂。统计分析表明，粘结剂流速对含水量和工艺产量有最大的影响。空气温度对粒径的影响更大。最佳条件（T = 75°C，Q = 2 0 mL / min）产生的颗粒是初始颗粒的两倍。花青素（2.34 mg / 100 g）以可接受的水分含量（≤10％）和高产率（> 75％）掺入。团聚粉末中的流动性比原料中大，润湿时间减少约77.0％。所得的蛋白质粉将速溶粉的特性与健康和营养益处结合在一起。