| Abstrakt: |
Coffee is considered one of the most widely consumed beverages globally, with approximately 50% of processed coffee beans ending up as waste in the form of spent coffee grounds (SCG). The quantity of extracted oil obtained from SCG exceeds 20% and finds applications in various production processes, including food, cosmetic, pharmaceutical products, and even biodiesel production. It is crucial to employ precise parameters to optimize the extraction process, enhancing both the quantity and quality of the resulting oil, as the obtained oil contains various bioactive substances with antioxidant, anti-inflammatory, and immunomodulatory properties. Given the substantial volume of SCG disposed of in landfills, there is a pressing need to develop methods for utilizing SCG fully, benefiting the environment by reducing waste and unlocking the untapped potential value of SCG. In our study, we employed both Soxhlet extraction and hydrodistillation methods to extract oil from spent coffee grounds, using hexane as a nonpolar solvent for the extraction process. Our findings indicate that the oil yield obtained through Soxhlet extraction was 3.59%, whereas hydrodistillation yielded 1.45%. Coffee oil extracted from spent coffee grounds offers various qualities, including potential antioxidant, anti-inflammatory, and immunomodulatory properties due to its bioactive compounds, as well as moisturizing, skin-smoothing, and skinbrightening effects when used in cosmetics and skincare products. [ABSTRACT FROM AUTHOR] |
