decaffeinate

verb [vt. 及物动词]vt. 除去……的咖啡因

The research could help scientists develop better medications as well as find ways to decaffeinate waste from coffee and tea production with minimal impact on the environment.
这项研究不仅可以帮助科学家开发出更好的药物，还能找到方法，在对环境影响最小的前提下，除去咖啡和茶叶产品的残渣中的咖啡因。