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Spent Coffee Grounds as a Source of Chlorogenic Acid
1Faculty of Chemistry, University of Warsaw, 02-093 Warsaw, Poland.
Molecules (Basel, Switzerland)
|February 13, 2025
Summary
Spent coffee grounds offer valuable chlorogenic acids, natural antioxidants with health benefits. New methods efficiently extract these compounds, promoting a sustainable bioeconomy and reducing waste.
Area of Science:
- Biotechnology
- Green Chemistry
- Food Science
Background:
- Spent coffee grounds (SCG) are a rich source of chlorogenic acids (CGAs), potent natural antioxidants.
- CGAs are linked to potential health benefits, including delaying chronic diseases and age-related disorders.
- These compounds find applications in pharmaceutical, cosmetic, and food industries.
Purpose of the Study:
- To review recent procedures for extracting and recovering chlorogenic acids from SCG.
- To highlight key factors influencing CGA extraction efficiency.
- To emphasize the role of SCG valorization in a sustainable bioeconomy.
Main Methods:
- Overview of recently proposed extraction and recovery procedures for CGAs from SCG.
- Discussion of critical parameters such as solvent selection and temperature control.
- Consideration of advanced extraction technologies for enhanced efficiency.
Main Results:
- SCG is an accessible and low-cost by-product for CGA extraction.
- Solvent choice and temperature are crucial due to the thermolabile nature of CGAs.
- Advanced technologies offer faster extraction and improved yields.
Conclusions:
- Efficient extraction of CGAs from SCG is achievable through optimized procedures.
- Valorization of coffee waste aligns with sustainable and circular bioeconomy principles.
- Maximizing the benefits of SCG reduces environmental pollution and creates economic value.
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