Određivanje hlapljivih komponenata u cvijetu mandarine

master's thesis

• Title (english): Determination of volatile components in mandarin flower
• Author: Katarina Mijić
• Mentor: Luna Maslov Bandić (mentor)
• Committee member: Luna Maslov Bandić (predsjednik povjerenstva)
• Committee member: Tatjana Prebeg (član povjerenstva)
• Committee member: Nenad Jalšenjak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Chemistry); Zagreb
• Defense date and country: 2023-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Istraživanje mirisnih komponenata cvjetova proučavano je tijekom posljednjih deset godina kako bi se razumjela biosinteza, emisija, regulacija i ekološki utjecaji emitiranih cvjetnih hlapljivih spojeva. Cvjetni mirisi igraju važnu ulogu, posebno u komunikaciji između cvjetajućih biljaka i njihovih oprašivača, kao i u odbijanju herbivora. U ovom radu fokusiralo se na cvjetove tri različite sorte japanske mandarine Unshiu: Chahare, Okitsu i Saigon, s ciljem identifikacije kemijskih spojeva u njihovim hlapljivim komponentama te istraživanje sličnosti i razlika među sortama iste citrusne vrste. Analiza uzoraka provedena je pomoću SPME-GC-MS tehnike, koja je pokazala da su terpeni bili kvantitativno najzastupljeniji spojevi kod sve tri sorte, s postotkom monoterpena od 58,57% za Chaharu, 60% za Okitsu i 36,43% za Saigon. Svaka od tih sorti imala je jedinstveni mirisni profil s identificiranim specifičnim hlapljivim komponentama koje su se razlikovale neovisno o dominantnim spojevima. Ovi rezultati ukazuju na to da se miris različitih sorti iste citrusne vrste može znatno razlikovati, ovisno o specifičnim mirisnim karakteristikama i udjelu pojedinih komponenata.

Abstract (english)

Research on the aromatic components of flowers has been conducted over the last ten years
to understand the biosynthesis, emission, regulation, and ecological impacts of emitted
floral volatile compounds. Floral scents play a significant role, particularly in the
communication between flowering plants and their pollinators, as well as in deterring
herbivores. Using the example of the flowers of three varieties of Japanese mandarins
(Unshiu): Chahare, Okitsu, and Saigon, the aim was to identify the chemical compounds in
their volatile components and explore the similarities and differences among varieties of the
same citrus species. Sample analysis was carried out using the SPME-GC-MS technique,
revealing that monoterpenes were quantitatively the most abundant compounds in all three
varieties, accounting for 58.57% in Chahare, 60% in Okitsu, and 36.43% in Saigon. Each of
these varieties had a unique aromatic profile with specific volatile components identified,
which differed independently of the dominant compounds. These results indicate that the
scent of different varieties within the same citrus species can vary significantly depending on
specific aromatic characteristics and the proportion of individual components.

• Keywords: mandarina cvijet; plinska kromatografija; hlapljivi spojevi
• Keywords (english): Mandarin flower; gas chromatography; volatile compounds
• Language: croatian
• URN:NBN: urn:nbn:hr:204:297787
• Study programme: Title: Horticulture; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka hortikulture (magistar/ magistra inženjer/inženjerka hortikulture)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-10-31 07:48:33