郁金微细粉碎工艺及其微细粉的粉体学性质研究

目的：对郁金微细粉碎工艺及粉碎过后的郁金微细粉的粉体学性质进行研究分析，为郁金作为中药制剂原料药使用提供依据。方法：以d50为指标，运用正交设计优选郁金的微细粉碎工艺，并通过微细粉碎前后外观性状、红外光谱、流动性、吸湿性等方面进行比较研究，评价不同粒径郁金粉体的粉体学性质。结果：根据正交设计结果优选出了最佳微细粉碎工艺，即投料量为1200 g、含水量为5.5%、粉碎时间为40 min；郁金超微前后粉末的粉体学性质对比结果显示，随粒径变小，郁金粉体逐渐出现团聚现象，颗粒感消失，颜色变浅，粉末细腻，化学成分和分子结构未发生改变，流动性降低，平衡吸湿量增加，吸湿初始速度增大，但吸湿加速度降低，吸湿性略增强。结论：郁金微细粉碎工艺简便，可靠，粒径小，可行性高，可用于郁金的微细粉碎，综合评价优选微细粉四为较优粉体。

Research on Turmeric Fine Pulverizing Process and Its Powder Properties

This paper was aimed to analyze and study the process of Turmeric fine pulverizing; and the powder properties of Turmeric ultra-micro powder after the process. Based on d50, the powder properties of Turmeric ultramicro powder were summarized by using orthogonal design to select the optimal Turmeric fine pulverizing. Comparisons were made on powder properties, such as exterior characters, IR spectra, fluidity and hygroscopicity before and after fine pulverizing. The results showed that optimal fine pulverizing process was determined based on orthogonal design. The conditions were that the material was 1 200 g, with water of 5.5% and crushing for 40 min. Comparison of powder properties of Turmeric powders before and after fine pulverizing showed that as the diameter of the particle decreased. Turmeric particle gradually showed signs of aggregation. At the same time, granular sensation disappeared; the color turned lighter; powder became finer; fluidity was reduced; balanced hygroscopic capacity elevated. Although the chemical composition and molecular structure had not changed; initial velocity and capacity of hygroscopicity increased, acceleration declined. It was concluded that Turmeric fine pulverizing was a convenient, reliable and practical process, with small size of particle. It can be used for Turmeric fine pulverizing. The comprehensive evaluation showed that ultrafine powder four as the optimum powder.