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Maria Batsioula is a graduate of the Civil Engineering Faculty of Aristotle University of Thessaloniki (AUTH), holding also a Master's degree in Environmental Management & Sustainable Development from the International Hellenic University. She is currently a PhD Candidate in the Laboratory of Heat Transfer & Environmental Engineering of AUTH. Her research interests focus on Life Cycle Analysis, Waste management, Environmental Impact Assessment, Circular economy and Sustainability.
The amount of spent coffee grounds (SCGs) created, represents an environmental challenge worldwide. In this context, the aim of the present study was to exploit the potential of SCGs as a source of bioactive compounds that can be utilized in high value-added products. Thus, a cost-effective and environmentally friendly extraction technique was developed to ensure extracts with high total phenolic content and antioxidant activity, as well as significant amounts of caffeine and chlorogenic acid. Response surface methodology was implemented to evaluate the effects of the main extraction parameters (i.e., time, temperature, and ethanol-to-water ratio) and their interactions on the defined responses. The ethanol ratio was found to be the most significant variable. Then, a set of optimum values was determined (i.e., 7 min, 75 °C, and ethanol:water ratio 5:95), where the predicted values for responses were found to be 5.65% for the yield (Y1), 152.68 mg gallic acid equivalents per L for total phenolic content (Y2), 0.797 μmol Trolox equivalent per mL for the antioxidant activity (Y3), 30.5 ppm for caffeine concentration (Y4), and 17.4 ppm for chlorogenic acid concentration (Y5). Furthermore, the corresponding high experimental values from the validation experiment fitted well to these predictions, clearly clarifying the high potential of SCG extracts for use in high value-added applications.
Georgia-Christina Mitraka; Konstantinos Kontogiannopoulos; Maria Batsioula; George Banias; Andreana Assimopoulou. Spent Coffee Grounds’ Valorization towards the Recovery of Caffeine and Chlorogenic Acid: A Response Surface Methodology Approach. Sustainability 2021, 13, 8818 .
AMA StyleGeorgia-Christina Mitraka, Konstantinos Kontogiannopoulos, Maria Batsioula, George Banias, Andreana Assimopoulou. Spent Coffee Grounds’ Valorization towards the Recovery of Caffeine and Chlorogenic Acid: A Response Surface Methodology Approach. Sustainability. 2021; 13 (16):8818.
Chicago/Turabian StyleGeorgia-Christina Mitraka; Konstantinos Kontogiannopoulos; Maria Batsioula; George Banias; Andreana Assimopoulou. 2021. "Spent Coffee Grounds’ Valorization towards the Recovery of Caffeine and Chlorogenic Acid: A Response Surface Methodology Approach." Sustainability 13, no. 16: 8818.
Municipal Solid Waste (MSW) management has been a major problem of modern cities for many years. Thus, the development of optimal waste management strategies has been a priority for the European Commission, especially in the transition toward a circular economy. In this paper, an analysis of different MSW treatment methods that can be effectively implemented in the Region of Central Macedonia (RCM) is provided, and their comparison from an environmental point of view is performed. The assessment is based on real data indicated in the recently updated Greek National Waste Management Plan, whereas the different scenarios developed include landfilling without energy recovery, landfilling with energy recovery, recycling and secondary materials recovery, mechanical-biological treatment, bio-waste composting and anaerobic digestion with energy recovery, and incineration with energy recovery. The obtained results illustrate that efficient waste streams sorting is of vital importance for the effective implementation of an integrated waste management system toward the sustainable management of MSW.
Georgios Banias; Maria Batsioula; Charisios Achillas; Sotiris Patsios; Konstantinos Kontogiannopoulos; Dionysis Bochtis; Nicolas Moussiopoulos. A Life Cycle Analysis Approach for the Evaluation of Municipal Solid Waste Management Practices: The Case Study of the Region of Central Macedonia, Greece. Sustainability 2020, 12, 8221 .
AMA StyleGeorgios Banias, Maria Batsioula, Charisios Achillas, Sotiris Patsios, Konstantinos Kontogiannopoulos, Dionysis Bochtis, Nicolas Moussiopoulos. A Life Cycle Analysis Approach for the Evaluation of Municipal Solid Waste Management Practices: The Case Study of the Region of Central Macedonia, Greece. Sustainability. 2020; 12 (19):8221.
Chicago/Turabian StyleGeorgios Banias; Maria Batsioula; Charisios Achillas; Sotiris Patsios; Konstantinos Kontogiannopoulos; Dionysis Bochtis; Nicolas Moussiopoulos. 2020. "A Life Cycle Analysis Approach for the Evaluation of Municipal Solid Waste Management Practices: The Case Study of the Region of Central Macedonia, Greece." Sustainability 12, no. 19: 8221.