Ekstrakcija polifenola eutektičkim otapalima u mikrosustavima

undergraduate thesis

• Title (english): Deep eutectic solvents based extraction of polyphenols in microsystems
• Author: Valeria Pezić
• Mentor: Bruno Zelić (mentor)
• Committee member: Bruno Zelić (predsjednik povjerenstva)
• Committee member: Anita Šalić (član povjerenstva)
• Committee member: Aleksandra Sander (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2020-09-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Proces ekstrakcije ima široku primjenu u brojnim industrijama današnjice. Konvencionalna otapala koja se obično koriste u procesu ekstrakcije imaju negativne i dugotrajne učinke na okoliš i zdravlje. U svrhu unaprjeđenja ekološki prihvatljivih otapala, konvencionalna su otapala zamjenu pronašla u novoj generaciji otapala, eutektičkim otapalima, koja su zbog značajno pogodnijih svojstava postala predmet istraživanja i prakse posljednjih godina. Polifenolni spojevi su mikronutrijenti koji se nalaze u brojnim biljnim namirnicama. Ekstrakcija polifenolnih spojeva privukla je veliku pažnju mnogih istraživača zbog njihova antioksidativnog, antibakterijskog i antimutagenog djelovanja. Primjena mikrosustava u industriji postala je značajna zbog brojnih prednosti koje ova vrsta opreme nudi. Ono što ekstrakciji u mikroekstraktorima daje prednost u odnosu na ekstrakciju u klasičnim (makro- i mezo-) ekstraktorima jesu: poboljšani prijenos tvari i topline, bolja kontrola kinetike procesa, manje nusproizvoda i nečistoća, poboljšana radna sigurnost i veća energetska učinkovitost. Mikrosustavi zbog svojih brojnih prednosti predstavljaju obećavajući razvojni pravac u ekstrakcijskim procesima.

Abstract (english)

The extraction process is widely used in many industries today. Conventional solvents commonly used in the extraction have negative and long – lasting effects on the environment and health. In order to improve environmentally friendly solvents, conventional solvents have found a replacement in a new generation of solvents, eutectic solvents, which have become the subject of research and practice in recent years due to their suitable properties. Polyphenolic compounds are micronutrients found in a number of plants. The extraction of polyphenolic compounds has attracted attention from many researchers due to their antioxidant, antibacterial and antimutagenic effects. The application of microsystems in industry has become significant due to the many advantages that this type of reactor offers. What gives extraction in microextractors an advantage over extraction in conventional extractors are: greatly improved mass and heat transport, better control of reaction kinetics, less side effects and impurities, improved operational safety and higher energy efficiency. Microextractors, due to their numerous suitable properties, represent a promising direction in development of extraction processes.

• Keywords: ekstrakcija; eutektička otapala; polifenolni spojevi; mikroekstraktori
• Keywords (english): extraction; eutectic solvents; polyphenolic compounds; microextractors
• Language: croatian
• URN:NBN: urn:nbn:hr:149:419271
• Study programme: Title: Chemical Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-05-08 12:19:44