Unit:
Κατεύθυνση Αναλυτική ΧημείαLibrary of the School of Science
Author:
Kanakis Dimitrios-Christos
Supervisors info:
Νικόλαος Θωμαΐδης, Καθηγητής, Τμήμα Χημείας, Ε.Κ.Π.Α.
Original Title:
Ανάπτυξη μεθόδων για τον προσδιορισμό διγλυκεριδίων και τριγλυκεριδίων σε δείγματα ελειολάδου από το Βόρειο Αιγαίο
Translated title:
Development of methods for the determination of diglycerides and triglycerides in olive oil samples from the North Aegean
Summary:
The purpose of this study is to develop methods for the determination of diglycerides and triglycerides in olive oil. The study also contains the influence o fenvironmental, geographic factors as well as processing factors in the concentration of diglycerides in olive oil. The determination of 1,2- and 1,3-diglycerides was based on ISO method 29822:2012. The process conditions were optimized using gas chromatography with tandem mass spectrometry (GC-MS/MS). The analysis of samples was performed with gas chromatography with flame ionization detector (GC-FID). The results obtained from the analysis of the samples were statistically processed to determine the factors that statistically affect the levels of 1,2- and 1,3-diglycerides. Finally, the freshness index of the oils was calculated. For triglycerides, a review of the methods for the triglycerides was carried out and the use of liquid chromatography coupled with tandem mass spectrometry detector (LC-MS / MS) was chosen to determine the triglycerides. Standard solution and reference material were used for the identification of triglycerides and its presence in olive oil was studied.
Main subject category:
Science
Keywords:
olive oil, gas chromatography, diglycerides, triglycerides, liquid chromatography
