Zelena ekstrakcija lignina, polifenola i vinske kiseline pomoću niskotemperaturnih eutektičkih otapala

master's thesis

• Title (english): Green extraction of lignin, polyphenols and tartaric acid using deep eutectic solvents
• Author: Anamarija Vrabec
• Mentor: Ivana Radojčić Redovniković (mentor)
• Mentor: Anja Damjanović (pomoć pri izradi, neposredni voditelj)
• Committee member: Marina Cvjetko Bubalo (predsjednik povjerenstva)
• Committee member: Karin Kovačević-Ganić (član povjerenstva)
• Committee member: Natka Ćurko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Biochemical Engineering); (Laboratory for Cell Technology, Application and Biotransformations); Zagreb
• Defense date and country: 2023-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Zadnjih nekoliko desetljeća počeli su se razvijati procesi u skladu sa principima zelene kemije, odnosno proizvodnje i ekstrakcije prirodnih produkata što uključuje smanjenu potrošnju energije, veću sigurnost i kvalitetu po okoliš i potrošače. Zbog toga se tradicionalno korištena otapala zamjenjuju sa sigurnijim i efektivnijim niskotemperaturnim eutektičkim otapalima prilikom ekstrakcije bioaktivnih spojeva iz prirodnih izvora, a koji ujedno omogućavaju stabilizaciju tih spojeva. Neki od takvih visoko vrijednih prirodnih spojeva su polifenoli i vinska kiselina čiji je dobar izvor komina grožđa dobivana nakon procesa proizvodnje vina. Također, važan spoj je i lignin dobiven iz lignocelulozne biomase koja se u novije vrijeme procesira upravo niskotemperaturnim eutektičkim otapalima. Lignin dobiven takvim procesom veće je čistoće te posjeduje karakteristike prikladne za daljnju obradu.

Abstract (english)

In the last few decades, the processes of green chemistry, i.e. the production and extraction of natural products, have begun to develop, which includes reduced energy consumption, greater safety and quality for the environment and consumers. For this reason, traditionally used solvents are replaced with safer and more effective low-temperature eutectic solvents when extracting bioactive compounds from natural sources and enable their stabilization. Some of such highly valuable natural compounds are polyphenols and tartaric acid, a good source of which is grape pomace obtained after the winemaking process. Also, an important compound is lignin obtained from lignocellulosic biomass, which is recently processed with low-temperature eutectic solvents. The lignin obtained by such a process is of higher purity and has characteristics suitable for further processing.

• Keywords: niskotemperaturna eutektička otapala; lignin; polifenoli; vinska kiselina; komina grožđa
• Keywords (english): natural deep eutectic solvents; lignin; polyphenols; tartaric acid; grape pomace
• Language: croatian
• URN:NBN: urn:nbn:hr:159:538578
• Study programme: Title: Molecular Biotechnology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka molekularne biotehnologije (magistar/magistra inženjer/inženjerka molekularne biotehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-06-27 12:24:26