Ekstrakcija bioaktivnih snovi iz odpadkov pri predelavi oljk

Sel, Zala (author), Vidrih, Rajko (mentor)

Industrija oljčnega olja se je v zadnjih letih precej povečala zaradi številnih pozitivnih učinkov oljčnega olja na človeško zdravje. Hkrati pa industrija proizvaja velike količine odpadnih produktov, ki precej obremenjujejo okolje ter predstavljajo velik strošek odstranitve. Odpadni produkti pri predelavi oljčnega olja vsebujejo visoko vredne fenolne spojine, ki bi z nadaljnjo uporabo oziroma reciklažo predstavljale ekonomsko zanimivo in okolju prijazno rešitev živilskega sektorja. Diplomsko delo zajema pregled različnih metod ekstrakcije, še posebej okolju prijazne alternative v primerjavi s konvencionalnimi postopki. Metode smo med seboj primerjali glede na pogoje ekstrakcije ter končne rezultate, natančneje izkoristke posameznih metod ter končne vsebnosti fenolnih spojin. Ugotovili smo, da dajejo številne sodobne ekstrakcijske metode boljše rezultate v primerjavi s konvencionalnimi, kar dodatno prispeva k izboljšanju ekonomike proizvodnje ter pripomore k zmanjšanju obremenitve okolja. Hkrati predstavljajo ekstrakti iz oljčnih odpadkov velik doprinos predvsem v živilski in farmacevtski industriji. Uporabljeni bi lahko bili kot naravni alternativni aditivi, saj imajo številne lastnosti, s katerimi bi hkrati podaljšali rok uporabe posameznega živila ter imeli koristne učinke na zdravje človeka. Da bi bolje nadzorovali sproščanje fenolnih spojin v človeškem telesu, smo zajeli še nekatere možnosti kapsulacije.

• Language: Slovenian
• Keywords: ekstrakcija, oljčne tropine, oljčni listi, odpadna voda, fenolne spojine, stranski produkti, bioaktivne komponente
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [Z. Sel]
• Year: 2021
• PID: 20.500.12556/RUL-129480
• UDC: 664.061:634.63:628.477.2
• COBISS.SI-ID: 74864387
• Publication date in RUL: 02.09.2021

SEL, Zala, 2021, Ekstrakcija bioaktivnih snovi iz odpadkov pri predelavi oljk [online]. Bachelor’s thesis. Ljubljana : Z. Sel. [Accessed 1 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=129480

Secondary language

• Language: English
• Title: Extraction of bioactive compounds from olive production waste

Abstract

The olive oil industry has grown significantly in recent years due to several positive effects of olive oil to human health. At the same time, the industry produces large quantities of waste, which significantly burdens the environment and represents a high cost for their disposal. Nevertheless, waste products in the processing of olive oil contain highly valuable phenolic compounds. Recycled phenolic compounds might represent a favorable economic and environmentally friendly solution for the food industry. This thesis includes an overview of different extraction methods, especially environmentally friendly alternatives to conventional practice. We compared the methods according to the extraction conditions and the final results, more precisely the efficiency of each method and the final content of phenolic compounds. We have found that many modern extraction methods give better results compared to the conventional ones, which further contributes to the improvement of the economic aspect and alleviate the environmental problem. Furthermore, the food industry might benefit greatly from the bioactive extracts from olive waste. Waste extracts could be used as alternative natural additives because they possess many bioactive properties that would both extend the shelf life of individual food and have many beneficial effects on human health. To better control the release of phenolic compounds in the human body, we also cover some encapsulation options.

• Keywords: extraction, olive pomace, olive leaves, wastewater, phenolic compounds, olive mill waste, bioactive compounds