The primary objective of this work was to investigate microwave drying behaviour of bee pollen grains, and study the effect of microwave drying on quality, physicochemical properties, sensory characteristics and morphological structure of the bee pollen. Bee pollen samples were dried at 180, 360, 540, 720 and 900 W microwave power levels. Drying kinetics of the bee pollen samples during microwave drying were investigated, and protein, fat, ash, carbohydrate, vitamin C, solubility and colour of dried bee pollen samples were evaluated. Scanning electron microscopy (SEM) images of fresh and microwave dried bee pollens were obtained, and their organoleptic properties were evaluated by panellists. Effective moisture diffusivity (D_eff) values ranged from 0.04 × 10⁻⁸ to 1.14 × 10⁻⁸ m²/s, and the activation energy (E_a) was found to be 71.68 W/g. Drying time was shortened by 94% when the microwave power level was increased from 180 to 900 W. Protein, fat, total carbohydrates, vitamin C and colour values of bee pollen were affected by the microwave power level. Microwave power level was an important parameter for the colour change. The lowest ΔE value and the highest solubility (%) were obtained for bee pollen microwave dried at 180 W power level. Morphological changes were observed in microwave dried bee pollen grains. By comparing all the physicochemical properties and organoleptic characteristics of microwave dried bee pollens, the bee pollen dried at 180 W microwave power level was found to retain its quality attributes better than the other microwave dried bee pollens.

这项工作的主要目的是研究蜂花粉粒的微波干燥行为，并研究微波干燥对蜂花粉质量，理化性质，感官特性和形态结构的影响。蜂花粉样品在180、360、540、720和900 W微波功率水平下干燥。研究了蜂花粉样品在微波干燥过程中的干燥动力学，并评估了干燥的蜂花粉样品的蛋白质，脂肪，灰分，碳水化合物，维生素C，溶解度和颜色。获得新鲜和微波干燥的蜂花粉的扫描电子显微镜（SEM）图像，并由小组成员评估其感官特性。有效水分扩散率（D _eff）值的范围为0.04×10 ^-8至1.14×10^-8  m ² / s，发现活化能（E _a）为71.68 W / g。当微波功率水平从180 W增加到900 W时，干燥时间缩短了94％。蛋白质，脂肪，总碳水化合物，维生素C和蜂花粉的颜色值受微波功率水平的影响。微波功率水平是颜色变化的重要参数。最低ΔE对于在180 W功率水平下微波干燥的蜂花粉，获得了最高值和最高溶解度（％）。在微波干燥的蜂花粉粒中观察到形态变化。通过比较微波干燥蜂花粉的所有理化特性和感官特性，发现在180 W微波功率水平下干燥的蜂花粉比其他微波干燥蜂花粉保留更好的质量属性。