Costas S. Papageorgiou

Isolation and characterization of phenolic substances from pomegranate residues

Costas S. Papageorgiou, Anastasios Kyriazis, Andreas D. Zentelis, Vassilis Ioannidis et autres

Abstract BACKGROUND Pomegranate Residues (PRs) can be utilized for the development of a fermentation substrate for bioethanol production, while the contained bioactive substances could be recovered with physicochemical separation processes to be used in pharmaceutics or cosmetic products. Herein, we focused on …

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Hydroxytyrosol Enrichment of Olive Leaf Extracts via Membrane Separation Processes

Costas S. Papageorgiou, Stathis Lymberopoulos, Panagiotis Bakas, Dimitris P. Zagklis et autres

Antioxidants isolated from plant materials, such as phenolics, have attracted a lot of attention because of their potential uses. This contributes to the idea of the biorefinery, which is a way to produce useful products from biomass waste. Olea europaea byproducts have …

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High-Yield Production of a Rich-in-Hydroxytyrosol Extract from Olive (Olea europaea) Leaves

Costas S. Papageorgiou, Paraskevi Lyri, Ioanna Xintaropoulou, Ioannis Diamantopoulos et autres

The aim of the present study was to explore the high-yield production of hydroxytyrosol, a phenolic compound with very high antioxidant capacity. Olea europaea leaves were chosen as feedstock as they contain significant amounts of oleuropein, which can be hydrolyzed to hydroxytyrosol. …

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Valorization of phenolic extracts from Olea europaea L. by membrane operations

Dimitris P. Zagklis, Costas S. Papageorgiou, Christakis A Paraskeva

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Technoeconomic Analysis of the Recovery of Phenols from Olive Mill Wastewater through Membrane Filtration and Resin Adsorption/Desorption

Dimitris P. Zagklis, Costas S. Papageorgiou, Christakis A Paraskeva

Olive mill wastewater is an important agro-industrial waste with no established treatment method. The authors have developed a phenol separation method that could potentially cover the treatment cost of the waste. The purpose of this study was to identify any economic hotspots …

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Five Rules for Measuring Biomass Pyrolysis Rates: Pulse-Heated Analysis of Solid Reaction Kinetics of Lignocellulosic Biomass

Saurabh Maduskar, Gregory G. Facas, Costas S. Papageorgiou, C. Luke Williams et autres

Pyrolytic conversion of lignocellulosic biomass utilizes high temperatures to thermally fragment biopolymers to volatile organic compounds. The complexity of the degradation process includes thousands of reactions through multiple phases occurring in less than a second. In this work, the requirements are established …

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