Journal of Chromatography & Separation Techniques
Open Access

Isolation of polyphenols from wastes produced by wine industry

9^th International Conference and Expo on Separation Techniques

September 13-14, 2018 | Zurich, Switzerland

Martin Topiar, Marie Cerhova, Zdenka Zachova and Marie Sajfrtova

Institute of Chemical Process Fundamentals of CAS, Czech Republic

Scientific Tracks Abstracts: J Chromatogr Sep Tech

Abstract :

Czech Republic belongs among countries with long winemaking tradition. Unfortunately, wine-processing industry produces large amounts of waste, which is usually burnt or it is used in compost. However, grape marc, stems or wood contains wide variety of biologically active substances which can be used as by-products in food suplementation or in a pharma industry. This work was focused on combination of several extraction techniques suitable for the isolation of polyphenols (resveratrol, viniferins) from wine marc, stems and wood with South Moravia origin. We have observed variations in chemical compositions of isolates obtained by the combination of pressing, maceration, soxhlet and ultrasonic extraction, based on a different process parameters (time, solvent to feed ratio, temperature, solvent, ultrasonic amplitude). Chemical composition of isolated samples were determined by LC-MS. Moreover, we have designed batch laboratory equipment which allows us to combine all of the mentioned isolation techniques. Using the combination of soxhlet and ultrasionic extraction resulted into substantial decrease in processing time with no influence on the yield of polyphenols in the isolate.

Biography :

Martin Topiar has completed his Master of Science in Synthesis and Production of Drugs at the University of Chemistry and Technology, Prague. This year he obtained PhD at UTC Prague in cooperation with the Institute of Chemical Process Fundamentals of CAS, v.v.i. He is focusing on the SFE from plants with particular interest in a study of several types of fractionation techniques. He has published five papers in reputed journals and presented his work in many international conferences dealing with extraction techniques and supercritical fluids utilization.

E-mail: topiar@icpf.cas.cz