Utjecaj veličine plodova jagode (Fragaria ananassa × Duch.) na bioaktivni sastav i antioksidacijski potencijal

master's thesis

• Title (english): Influence of strawberry (Fragaria ananassa × Duch.) fruit size on bioactive composition and antioxidant potential
• Author: Ines Šoštarić
• Mentor: Danijela Bursać Kovačević (mentor)
• Mentor: Anica Bebek Markovinović (pomoć pri izradi, neposredni voditelj)
• Mentor: Predrag Putnik (pomoć pri izradi, neposredni voditelj)
• Mentor: Boris Duralija (pomoć pri izradi, neposredni voditelj)
• Committee member: Marija Badanjak Sabolović (predsjednik povjerenstva)
• Committee member: Predrag Putnik (član povjerenstva)
• Committee member: Suzana Rimac Brnčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Engineering); (Laboratory for Technology of Fruits and Vegetables Preservation and Processing); Zagreb
• Defense date and country: 2024-04-05, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

U ovom je radu ispitan utjecaj veličine plodova (<15 g, 15-30 g, >30 g) jagode sorte 'Albion' na bioaktivni sastav i antioksidacijski potencijal u svježim plodovima i 3D ispisanim proizvodima. U svim uzorcima su spektrofotometrijko određene koncentracije ukupnih fenola, flavonoida, flavanola, hidroksicimetnih kiselina, kondenziranih tanina i monomernih antocijana, te antioksidacijski potencijal DPPH i FRAP metodama. Različite mase plodova značajno utječu na udio bioaktivnih spojeva pri čemu svježi plodovi manje mase (<15 g) imaju najveći udio ukupnih fenola i antocijana. Slično, 3D ispisani proizvodi od plodova mase <15 g su imali veće udjele ukupnih fenola, flavonoida te antocijana u odnosu na 3D proizvode proizvedene od plodova većih masa. Ipak, antioksidacijski kapacitet određen DPPH i FRAP metodama nije se razlikovao u ovisnosti od mase plodova ni u svježim, kao ni u 3D ispisanim proizvodima. U zaključku, dobiveni rezultati ukazuju na važnost veličine plodova u proizvodnji 3D funkcionalnih proizvoda na bazi jagode.

Abstract (english)

In this study, the influence of fruit size (< 15 g, 15-30 g, > 30 g) of the strawberry cultivar 'Albion' on the bioactive composition and antioxidant potential of fresh fruit and 3D printed products (3DP) was investigated. The concentrations of total phenols, flavonoids, flavanols, hydroxycinnamic acids, condensed tannins and monomeric anthocyanins, and antioxidant potential (DPPH, FRAP) were determined spectrophotometrically. Fresh fruit with a lower weight (< 15 g) had the highest proportion of total phenols and anthocyanins. Similarly, 3DP made from fruit weighing < 15 g had higher levels of total phenolics, flavonoids and anthocyanins than 3DP made from higher mass fruit. However, the antioxidant capacity determined by the DPPH and FRAP methods did not differ between fresh and 3DP as a function of fruit weight. In summary, the results obtained indicate the importance of fruit size in the production of functional strawberry-based 3DP.

• Keywords: veličina plodova; jagoda (Fragaria ananassa × Duch.); bioaktivni spojevi; antioksidacijski potencijal; 3D ispis
• Keywords (english): fruit size; strawberry (Fragaria x ananassa Duch.); bioactive compounds; antioxidant potential; 3D print
• Language: croatian
• URN:NBN: urn:nbn:hr:159:286112
• 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: 2024-07-23 09:18:52