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Title:Optimizacija in validacija metode za določanje sestave eteričnih olj konoplje : diplomsko delo univerzitetnega študijskega programa I. stopnje
Authors:ID Gole, Karin (Author)
ID Islamčević Razboršek, Maša (Mentor) More about this mentor... New window
ID Ocvirk, Miha (Comentor)
Files:.pdf VS_Gole_Karin_2023.pdf (2,51 MB)
MD5: E210BF638A8A3C33CA6EA6606531566C
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Industrijska konoplja (Cannabis sativa L.) je znana predvsem zaradi psihoaktivne spojine delta-9-tetrahidrokanabinola (THC) in kanabidiola (CBD). Poleg omenjenih spojin je konoplja bogata tudi z drugimi zdravilnimi in koristnimi snovmi, ki se nahajajo v eteričnem olju. Med te sodijo terpeni. To so spojine, ki se nahajajo v zeliščih, sadju in zelenjavi in so odgovorni za njihov okus ter vonj. Področje raziskav terpenov je narastlo predvsem v zadnjem času zaradi njihovih pozitivnih učinkov na človeški organizem in njihovo uporabo v agronomiji. Kemotip konoplje opredeljuje sestavo njenih komponent, ki jo ugotovimo preko analize eteričnega olja konoplje. Na Inštitutu za hmeljarstvo in pivovarstvo Slovenije smo optimirali in validirali metodo za določanje sestave eteričnih olj konoplje, pri čemer smo uporabili referenčne metode Evropskega pivovarskega združenja (angl. European Brewery Convention, EBC). Eterično olje konoplje smo pridobili z destilacijo z vodno paro po Clevengerju in ga nato analizirali s plinsko kromatografijo, pri kateri smo uporabili plamensko ionizacijski detektor. Ker se v eteričnem olju konoplje nahaja veliko število komponent, je validacija na vseh nemogoča. Zato smo validacijo metode izvedli na petih izbranih komponentah, ki smo jih izbrali glede na njihovo vsebnost v konoplji. V sklopu validacije smo določili selektivnost in specifičnost, linearnost, natančnost, točnost ter mejo zaznavnosti in mejo določljivosti. Ker smo pri validaciji uporabili starejše vzorce eteričnih olj, smo se dodatno odločili za preizkus stabilnosti eteričnega olja.
Keywords:konoplja, terpeni, eterično olje, plinska kromatografija, validacija
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[K. Gole]
Year of publishing:2023
Number of pages:1 spletni vir (1 datoteka PDF (VIII, 33 f.))
PID:20.500.12556/DKUM-85647 New window
UDC:543.544.3:543.635.7(043.2)
COBISS.SI-ID:171570179 New window
Publication date in DKUM:05.10.2023
Views:815
Downloads:101
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-ND 4.0, Creative Commons Attribution-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nd/4.0/
Description:Under the NoDerivatives Creative Commons license one can take a work released under this license and re-distribute it, but it cannot be shared with others in adapted form, and credit must be provided to the author.
Licensing start date:05.09.2023

Secondary language

Language:English
Title:Optimization and validation of the analytical method for determination of hemp essential oil composition
Abstract:Industrial hemp (Cannabis sativa L.) is mainly known for the psychoactive compound delta 9 tetrahydrocannabinol (THC) and cannabidiol (CBD). In addition to these compounds, hemp is also rich in other medicinal and beneficial substances, including terpenes. These are compounds found in herbs, fruits and vegetables and are responsible for their taste and smell. The field of terpene research has grown, especially in recent times due to their positive effects on the human body and their use in agronomy. The chemotype of cannabis is defined by the composition of its components, which is determined through the analysis of the cannabis essential oil. At the Slovenian Institute of Hops and Brewing, we optimised and validated a method for the determination of the composition of cannabis essential oils using the European Brewery Convention (EBC) reference methods. Cannabis essential oil was extracted by steam distillation with Clevenger apparatus and then analysed by gas chromatography using a flame ionisation detector. The large number of components in cannabis essential oil makes validation on all of them impossible. Therefore, the validation of the method was performed on five selected components, which were chosen according to their content in cannabis. As part of the validation, we determined selectivity and specificity, linearity, precision, accuracy, detection limit and limit of quantification. As the validation used older essential oil samples, we additionally decided to test the stability of the essential oil.
Keywords:hemp, terpenes, essential oil, gas chromatography, validation


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