真空冷冻干燥在中草药加工中的应用

介绍了中草药真空冷冻干燥的原理和干燥过程中各阶段的工艺流程；给出了控制中草药质量降解的反应模型，以及反应阶数、速度常数、模型参数的确定方法；指出真空冷冻技术应用中草药干燥能有效地避免传统干燥方法所造成的或草药性味劣变、药用有效成分损失等缺陷，并针对目前生产成本高等问题进行了探讨，分析了中草药真空冷冻干燥市场发展的前景。

Application of Vacuum Freeze Drying on Chinese Herb Processing

Based on the introduction of the principle and the technical points of vacuum freeze drying on Chinese herb processing, the quality control model in the process was built, and the methods to determine the coefficient of the model were analyzed. It is indicated that the method of vacuum freeze drying can effectively prevent the degradation of cure and taste properties and the losing of biochemical active mass during the traditional drying process of Chinese herb. The market prospect of vacuum freeze drying on Chinese herb processing was forecasted while its limitation such as high cost was also discussed.