Usporedba kvalitete plodova jagoda uzgojenih na četiri različita geografska područja

undergraduate thesis

• Title (english): Comparison of the quality of strawberry fruits grown in four different geographical areas
• Author: Iva Marinović
• Mentor: Marina Krpan (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: 2021-07-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Cilj ovog rada bio je usporediti udio ukupnih fenola, antioksidacijsku aktivnost i senzorske karakteristike plodova jagoda uzgojenih na četiri različita geografska područja. Jagode su nabavljene iz trgovačke mreže s područja Neretve, Vrgorca, Istre i Zagrebačke županije. Udio ukupnih fenola i antioksidacijska aktivnost određeni su spektrofotometrijski. Prema analiziranim rezultatima, nisu utvrđene značajne razlike u udjelu ukupnih fenola i antioksidacijskoj aktivnosti ispitanih uzoraka jagoda. Senzorsko ocjenjivanje je provedeno prema principima kvantitativne deskriptivne analize (QDA). Svježi plodovi jagoda s područja Istre pokazali su se kao najbolje senzorski ocijenjeni u većini ispitivanih svojstava, dok su se svježi plodovi s područja Vrgorca pokazali kao najlošije senzorski ocijenjeni, posebice u svojstvima arome i punoće okusa te odnosu šećera i kiselina.

Abstract (english)

The purpose of this study was to compare total phenolic content, antioxidant activity and sensory characteristic of strawberry fruits grown in four different geograpichal areas. Strawberries were procured from the trade network from the area of Neretva, Vrgorac, Istria and Zagreb County. The content of total phenols and antioxidant activity were determined spectrophotometrically. According to the analyzed results, no significant differences in the content of total phenols and antioxidant activity of the tested strawberry samples were found. Sensory evaluation was performed according to the principles of quantitative descriptive analysis (QDA). Fresh strawberries from Istria proved to be the best sensory evaluated in most of the examined properties, while fresh strawberries from Vrgorac proved to be the the worst sensory evaluated, especially in the propeties of aroma, fullness of taste anf the ratio of sugar and acids.

• Keywords: antioksidacijska aktivnost; fenolni spojevi; jagode; senzorska analiza; QDA
• Keywords (english): antioxidant activity; phenolic compounds; sensory analysis; strawberries; QDA
• Language: croatian
• URN:NBN: urn:nbn:hr:159:014339
• Study programme: Title: Food Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-07-23 11:36:16