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Title:The effect of drying methods and extraction techniques on oleuropein content in olive leaves
Authors:ID Cör Andrejč, Darija (Author)
ID Butinar, Bojan (Author)
ID Knez, Željko (Author)
ID Tomažič, Kaja (Author)
ID Knez Marevci, Maša (Author)
Files:.pdf The_Effect_of_Drying_Methods_and-Andrejc-2022.pdf (1,22 MB)
MD5: 1871F36FD9DC09EFA250D5AED31A5610
URL https://www.mdpi.com/2223-7747/11/7/865
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
MF - Faculty of Medicine
Abstract:Increased demand for olive oil has caused higher quantities of byproducts in olive processing, such as olive leaves, olive skins, and vegetation water. It is well known that olive leaves contain several phenolic compounds, including secoiridoids. Oleuropein is the major secoiridoid in olive leaves. Oleuropein has been found to exhibit antioxidative, antimicrobial, antiviral, and antiatherogenic activities. We studied the effect of extraction techniques and drying methods on oleuropein content in olive leaves of Istrska belica and Lecino cultivar. Three different procedures of drying were used: at room temperature, at 105 °C, and freeze drying. Ethanol-modified supercritical extraction with carbon dioxide, conventional methanol extraction, and ultrasonic extraction with deep eutectic solvent were performed. Antioxidant activity was determined, as well as methanolic and supercritical extracts. The presence of olive polyphenols was confirmed by the HPLC method.
Keywords:olive leaves, drying, different extraction techniques, oleuropein
Publication status:Published
Publication version:Version of Record
Publication date:01.03.2022
Year of publishing:2022
Number of pages:17 str.
Numbering:Vol. 11, iss. 7
PID:20.500.12556/DKUM-84945 New window
ISSN on article:2223-7747
COBISS.SI-ID:102457091 New window
DOI:10.3390/plants11070865 New window
Publication date in DKUM:10.08.2023
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Record is a part of a journal

Shortened title:Plants
COBISS.SI-ID:523345433 New window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0046
Name:Separacijski procesi in produktna tehnika

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:J2-1725
Name:Pametni materiali za bioaplikacije


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Keywords:oljčni listi, sušenje, ekstrakcijske tehnike


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