Analiza fizikalno kemijskih parametara cvjetnog meda sezona 2022

master's thesis

• Title (english): Analysis of physical and chemical parameters of flower honey season 2022
• Author: Tea Ferić
• Mentor: Marina Krpan (mentor)
• Committee member: Nada Vahcic (predsjednik povjerenstva)
• Committee member: Zvonimir Šatalić (član povjerenstva)
• Committee member: Ines Panjkota-Krbavčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Quality Control); (Laboratory for Food Quality Control); Zagreb
• Defense date and country: 2023-03-31, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Med je jedna od najpopularnijih funkcionalnih namirnica kojoj se pripisuju antibakterijska, antioksidativna, antivirusna, antikancerogena te mnoga druga svojstva. Cilj ovog rada bio je odrediti fizikalno-kemijske parametre 53 uzorka cvjetnog meda prikupljenih u svrhu natjecanja „Zzzagimed 2022“ na temelju kojih se, uz senzorska svojstva, ocjenjuje kvaliteta meda. Određivali su se sljedeći fizikalno-kemijski parametri: maseni udjeli vode, hidroksimetilfurfurala, reducirajućih šećera, saharoze te slobodne kiseline i električna vodljivost. Analize su pokazale da svi uzorci zadovoljavaju propise o medu, što se tiče masenih udjela vode, hidroksimetilfurfurala, saharoze i slobodnih kiselina. Kada je riječ o električnoj vodljivosti, 2 uzorka nisu zadovoljila kriterij propisan Pravilnikom o medu (NN 53/2015), dok je 1 uzorak cvjetnog meda sadržavao niži maseni udjel reducirajućih šećera od dozvoljenog.

Abstract (english)

Honey is one of the most popular functional foods to which antibacterial, antioxidant, antiviral, anticancer and many other properties are attributed. The aim of this work was to determine the physico-chemical parameters of 53 flower honey samples collected for the purpose of the "Zzzagimed 2022" competition, on the basis of which, in addition to sensory properties, honey quality is evaluated. The following physicochemical parameters were determined: mass fractions of water, hydroxymethylfurfural, reducing sugars, sucrose and free acid and electrical conductivity. The analyzes showed that all samples meet the regulations on honey, as far as the mass fractions of water, hydroxymethylfurfural, sucrose and free acids are concerned. When it comes to electrical conductivity, 2 samples did not meet the criterion prescribed by the Ordinance on Honey (Official Gazette 53/2015), while 1 sample of flower honey contained a lower mass proportion of reducing sugars than allowed.

• Keywords: cvjetni med; fizikalno-kemijski parametri; kvaliteta
• Keywords (english): flower honey; physical and chemical parameters; quality
• Language: croatian
• URN:NBN: urn:nbn:hr:159:628820
• Study programme: Title: Food Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-05-21 11:48:08