Određivanje masenog udjela prolina i aktivnosti invertaze u različitim uzorcima meda

master's thesis

• Title (english): Determination of mass content of proline an invertase activity in different honey samples
• Author: Mia Kurek
• Mentor: Mirjana Hruškar (mentor)
• 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: 2007-02-02, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Kvaliteta meda jedan je od bitnih čimbenika plasmana meda na tržište, koja utječe na njegovu uporabu i važnost u ljudskoj prehrani. Med koji se nalazi na tržištu, kvalitativno se razlikuje nizom različitih faktora kao što su klimatski uvjeti, uvjeti proizvodnje, botaničko podrijetlo, pakiranje, uvjeti i vrijeme skladištenja. U ovom radu, ispitivano je 116 različitih uzoraka meda, prikupljenih s različitih lokacija Republike Hrvatske i Republike Slovenije. Ispitivanje je provedeno u svrhu određivanja fizikalno-kemijskih parametara, koji služe u kontroli kvalitete meda. Određivani su maseni udio prolina i aktivnost invertaze. Podaci su statistički obrađeni i razmatrani. Uočeno je da se maseni udio prolina kretao u rasponu od 27,317 - 1580,488 mg/kg meda, a aktivnost invertaze, izražena kao invertazni broj od 0,519 – 34,321. Gotovo svi uzorci zadovoljavaju zahtjevima tržišta.

Abstract (english)

Honey quality is one of the most important parameters that influence its emphasys on the market, as well as it has a great influence on honey consumption and its importance in human nutrition. Honey samples that are available commercially, differ in quality on account of various factors like climate, processing conditions, botanical origin, packaging, conditions and time of storage. The aim of this study was to determine physicochemical properties of 116 honey samples collected from different areas of Republic of Croatia and Republic of Slovenia. Proline mass portion and invertase activity were mesaured. The facts have been statisticly resulted and the corelation has been done. It was found that proline mass portion was between 27,317 - 1580,488 mg/kg honey and invertase activity, expressed as invertase number was between 0,519 – 34,321. Almost all samples have shown to be suitable for the market.

• Keywords: invertaza; med; prolin
• Keywords (english): invertase; honey; proline
• Language: croatian
• URN:NBN: urn:nbn:hr:159:434247
• Study programme: Title: Food Technology; specializations in: Nutrition; Course: Nutrition; Study programme type: university; Study level: graduate; Academic / professional title: diplomirani inženjer prehrambene tehnologije; smjer nutricionizam (diplomirani inženjer prehrambene tehnologije; smjer nutricionizam)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-09-06 09:40:02