Određivanje ukupnih fenola i antioksidacijske aktivnosti u bagremovu medu-sezona 2018.

master's thesis

• Title (english): Determination of the total phenols and antioxidant activity in Acacia honey-season 2018
• Author: Mirna Matančević
• Mentor: Nada Vahčić (mentor)
• Committee member: Draženka Komes (predsjednik 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: 2019-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

U ovom radu analiziran je 41 uzorak bagremova meda od kojih je jedan sa područja Bosne i Hercegovine, ostatak sa područja Hrvatske. Određen je udio ukupnih fenola pomoću modificirane Folin-Ciocalteu metode te antioksidacijska aktivnost pomoću dviju metoda, FRAP i DPPH. Udio ukupnih fenola se kretao u rasponu od 34,75 do 157,25 mg GAE·kgˉ¹ meda, ˝radical scavenging˝ aktivnost izražena kao IC50 u rasponu od 21,18 mg·mLˉ¹ do 137,43 mg·mLˉ¹ te antioksidacijska aktivnost određena pomoću FRAP metode u rasponu od 96,29 do 300,09 μM Fe(II) 10%-tne otopine meda.

Abstract (english)

In this assay 41 samples od honey acacia were analyzed, one of them from Bosnia and Herzegovina, the rest of Croatia. Total phenolic content was determined by the modified Folin- Ciocalteu method and antioxidant activity by two methods, FRAP and DPPH. Phenolic content ranged from 34,75 to 157,25 mg GAE·kgˉ¹ of honey, ˝radical scavening˝ activity expressed as IC50 from to 21,18 mg·mLˉ¹ to 137,43 mg·mLˉ¹ and antioxidant activity determined by FRAP method in range from 96,29 to 300,09 μM Fe(II) of the 10% honey solution.

• Keywords: med; antioksidacijska aktivnost; fenoli; DPPH; FRAP
• Keywords (english): honey; antioxidant activity; phenols; DPPH; FRAP
• Language: croatian
• URN:NBN: urn:nbn:hr:159:350463
• Study programme: Title: Food Safety Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka upravljanja sigurnošću hrane (magistar/magistra inženjer/inženjerka upravljanja sigurnošću hrane)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-07-16 10:09:18