摘要
The fundamental principle of cryogenic grinding (cryogrinding) for Chinese herbal medicine is similar to that of grinding methods for conventional materials, but the compositions are very complex, containing aromatics of high volatility, oils and fats, which are easily oxidized. Using liquid nitrogen or liquid air as the cryogen, all of these thermosensitive Chinese herbal medicines can be ground below their brittle temperature. The colour and other properties of the products of cryo-grinding will not be changed and the flavour and nutrition of the medicines will not be lost.
摘要译文
中草药的低温研磨（低温研磨）的基本原理类似于常规材料的研磨方法，但是该组合物非常复杂，含有高挥发性的芳烃，油和脂肪，易被氧化。使用液氮或液态空气作为冷冻剂，所有这些热敏中草药都可以在低于其脆性温度下研磨。低温研磨产品的颜色和其他性能不会改变，药品的风味和营养也不会丢失。
Shimo Li Shuangyan Ge Zhongping Huang Qun Wang Haoping Zhao Huaiyu Pan. Cryogenic grinding technology for traditional Chinese herbal medicine[J]. Cryogenics, 1991,31(2): 136-137