Kemijska karakterizacija meda i propolisa s otoka Čiovo

undergraduate thesis

• Title (english): Chemical characterization of honey and propolis from the island of Čiovo
• Author: Marlena Miše
• Mentor: Lidija Svečnjak (mentor)
• Committee member: Lidija Svečnjak (predsjednik povjerenstva)
• Committee member: Dario Kremer (član povjerenstva)
• Committee member: Saša Prđun (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Fisheries, Beekeeping, Game Management and Special Zoology); Zagreb
• Defense date and country: 2024-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Otok Čiovo ima dugu tradiciju u pčelarstvu, a otočna flora omogućuje proizvodnju različitih vrsta meda i propolisa. Cilj ovog rada je bio provesti kemijsku karakterizaciju meda i propolisa s otoka Čiovo. Prikupljeni uzorci meda analizirani su klasičnim fizikalno-kemijskim metodama i metodom infracrvene (FTIR-ATR) spektroskopije, a uzorci sirovog propolisa navedenom spektroskopskom metodom. Rezultati su pokazali kako je prosječan udio vode u analiziranim uzorcima meda iznosio 17,1 %, vrijednosti električne provodnosti su se kretale od 0,41 do 0,61 mS/cm, pH vrijednost 3,96 do 4,35, a uzorci su pokazali i slične spektralne profile te su identificirani kao autentičan multiflorni med. Rezultati spektralne analize uzoraka propolisa pokazali su značajne varijacije u kemijskom sastavu što ukazuje na različito botaničko podrijetlo. Navedeno je posljedica raznolikosti dostupnih biljnih vrsta otoka Čiovo s kojih pčele prikupljaju smolaste i balzamske tvari za proizvodnju propolisa.

Abstract (english)

The island of Čiovo has a long tradition in apiculture, and the island’s flora enables the production of various types of honey and propolis. The aim of this study was to conduct a chemical characterization of honey and propolis from the island of Čiovo. The collected honey samples were analyzed using classical physicochemical methods and infrared (FTIR-ATR) spectroscopy while the raw propolis samples were analyzed using mentioned spectroscopic method. The results showed that the average water content in the analyzed honey samples was
17.1 %, electrical conductivity values ranged from 0.41 to 0.61 mS/cm, pH value from 3.96 to 4.35, and the samples showed a similar spectral profiles and were identified as authentic multifloral honey. The results of the spectral analysis of the propolis samples showed significant variations in the chemical composition, which indicates a different botanical origin. This is a consequence of the variety of plant species available on the island of Čiovo, from which honey bees collect resinous and balsamic substances for the propolis production.

• Keywords: otok Čiovo; med; propolis; kemijska karakterizacija
• Keywords (english): island of Čiovo; honey; propolis; chemical characterization
• Language: croatian
• URN:NBN: urn:nbn:hr:204:039725
• Study programme: Title: Animal Sciences; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka animalnih znanosti (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka animalnih znanosti)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2025-09-20
• Created on: 2024-11-15 10:37:42