In the traditional oil powder production process, the wall material is accelerated dissolved in the water by the stirrer in the preparation tank, while the wall material floats on the water surface after being added to the water, and the wall material is slow to dissolve, easy to agglomerate, and easy to form bubbles, resulting in poor emulsification effect. Therefore, the walnut oil was used as the test material, and the process of pilot production line of walnut oil powder was optimized and put into practice. The rapid dissolution of the wall material was realized by setting up colloid mill and circulation pipeline at the bottom of the preparation tank. The walnut oil powder produced was opalescent in color, with an oil content of 22.15%, embedding rate of 92.87% and solubility of 99.35%, which could be directly added to the instant product. |