原文發布於: https://vocus.cc/article/65fa5722fd89780001a7da9f
咖啡渣（spent coffee grounds, SCG）的寶貝成分包括[i],[ii] :
有機物
有機物質（organic substances）超過1000多種，其中包括礦物質、脂質、蛋白質、肽、遊離氨基酸和粗纖維（木質素、半纖維素和纖維素）。
生物活性物
生物活性物（bioactive substances）具有抗氧化、抗菌和抗癌活性的生物活性物質，如生物鹼（咖啡因和三角鹼）、二萜（咖啡醇和卡威醇）和多酚（單寧、生育酚和花青素）。
在生長培養基中
當廢棄的咖啡渣（高達10%）存在於生長培養基中時，在培養的生菜葉中檢測到更高水準的葉黃素、β-胡蘿蔔素和葉綠素。
[i] Dimitrijević, S., Milić, M., Buntić, A., Dimitrijević-Branković, S., Filipović, V., Popović, V., & Salamon, I. (2024). Spent Coffee Grounds, Plant Growth Promoting Bacteria, and Medicinal Plant Waste: The Biofertilizing Effect of High-Value Compost. Sustainability, 16(4), 1632.
[ii] Andrade, C., Perestrelo, R., & Câmara, J. S. (2022). Valorization of spent coffee grounds as a natural source of bioactive compounds for several industrial applications—A volatilomic approach. Foods, 11(12), 1731.