低温干燥技术在中药领域的应用现状与展望

Application Status and Prospect of Low Temperature Drying Technology in Traditional Chinese Medicine

中药物料具有热敏性、黏稠性、挥发性及染菌性等显著特征。为保证中药材及制剂的疗效,应合理控制其制备过程中的干燥温度。本文阐述了低温干燥在中药领域应用的必要性以及针对不同物料特性时常用低温干燥技术和设备的适用性。分析了低温干燥技术存在的工艺与设备匹配差异、低温条件与干燥效率及高成本与高品质间的矛盾等问题,并提出了相应的对策。随着低温干燥相关基础理论研究的不断深入、智能装备制造技术的不断发展,高效低耗的低温干燥技术装备在中药工业生产领域中的广泛应用将成为现实。

The obvious characteristics of heat-sensitivity, viscosity, volatility and bacterial susceptibility of materials in traditional Chinese medicine are summarized in this paper. In order to ensure the efficacy of Chinese herbal medicines and their preparations, the drying temperature should be reasonably controlled. Thus, the necessity of application of low temperature drying technology to traditional Chinese medicine and the applicability of commonly used low temperature drying technologies and drying equipment are described. The differences in process and equipment matching between low-temperature drying technology, the contradiction between low temperature conditions and high drying efficiency, as well as the contradiction between high cost and high quality are analyzed. Some corresponding countermeasures are proposed. With the continuous deepening of theoretical research related to low temperature drying and the continuous development of smart equipment manufacturing technologies, low temperature drying technology will occupy an important position in the industrial production of traditional Chinese medicine.