Abstract

The spontaneous precipitation of caffeine from black coffee bean extracts obtained by extraction with supercritical carbon dioxide has been found. This effect is observed for various types of coffee when using pressure values of the supercritical extractant on the order of 40–50 MPa. Two valuable products, caffeine and decaffeinated coffee oil, can be obtained by the simple centrifugation of CO₂ extracts of coffee beans, which can be used in the food and cosmetic industries.

中文翻译：

---

从烘焙咖啡豆的超临界提取物中自发沉淀咖啡因

摘要

已经发现从用超临界二氧化碳萃取获得的黑咖啡豆萃取物中咖啡因的自发沉淀。当使用 40-50 MPa 量级的超临界萃取剂的压力值时，对各种类型的咖啡观察到这种效果。通过简单离心咖啡豆的CO ₂提取物，可以获得两种有价值的产品，咖啡因和脱咖啡因的咖啡油，可用于食品和化妆品行业。