Kemijski sastav i antioksidacijska aktivnost divlje jabuke (Malus sylvestris (L.) Mill.)

master's thesis

• Title (english): Chemical composition and antioxidant activity of wild apple (Malus sylvestris (L.) Mill.)
• Author: Dora Šenjug
• Mentor: Nada Vahčić (mentor)
• Committee member: Branka Levaj (predsjednik povjerenstva)
• Committee member: Maja Repajić (član povjerenstva)
• Committee member: Ksenija Marković (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: 2022-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Cilj ovog rada bio je odrediti kemijski sastav, antioksidacijsku aktivnost te ukupne fenole divlje jabuke (Malus sylvestris). Uzorci korišteni u ovom radu uzeti su s područja Hrvatske te je ukupno analizirano 9 uzoraka. Prosječan udio vode u analiziranim uzorcima divlje jabuke iznosio je 86,40 %, udio šećera 10,88 %, udio proteina 0,43 %, udio pepela 0,57 %, udio masti 0,28 % te udio celuloze 1,45 %. Antioksidacijska aktivnost divlje jabuke određena pomoću DPPH metode kreće se od 72,78 % - 81,67 %, a pomoću FRAP metode kreće se od 0,15 – 4,42 mmol/100g s.t. Udio ukupnih fenola kreće se od 905,73 – 13394,37 mg GAE/kg.

Abstract (english)

The aim of this study was to determine the chemical composition, antioxidant activity and total phenolic compounds of wild apple (Malus sylvestris). The samples used in this thesis were excluded from the territory of Croatia and total number of tested samples was 9. The average water content in the analyzed wild apple samples was 86.40 %, sugar content was 10.88 %, protein content was 0.43 %, ash content was 0.57 %, fat content was 0.28 % and cellulose content was 1.45 %. Antioxidant activity of wild apple determined by DPPH method ranges from 72.78 % - 81.67 %, and the activity determined by FRAP method ranges from 0.15 – 4.42 mmol/100g s.t. The total phenolic compounds ranges from 905.73 – 13394.37 mg GAE/kg.

• Keywords: divlja jabuka; Malus sylvestris L. Mill.; kemijski sastav; antioksidacijska aktivnost; ukupni fenoli
• Keywords (english): wild apple; Malus sylvestris L. Mill.; chemical composition; antioxidant activity; total phenolic compounds
• Language: croatian
• URN:NBN: urn:nbn:hr:159:626825
• 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: 2023-02-27 13:11:54