Određivanje udjela fenola i antioksidacijskog kapaciteta u sortama borovnice (Vaccinium corymbosum L.) uzgojenim na području sjeverozapadne Hrvatske

Autor: Verica Dragović-Uzelac, Zvonimir Savić, Ana Brala, Branka Levaj, Danijela Bursać Kovačević, Ante Biško
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Food Technology and Biotechnology
Volume 48
Issue 2
ISSN: 1334-2606
1330-9862
Popis: The aim of this study is to evaluate the content of phenolics: total phenols (TPC), flavonoids (TF), anthocyanins (TA), flavan-3-ols (TF3ols), as well as total antioxidant capacity (TAC) and reducing power (RP) in four blueberry cultivars (Vaccinium corymbosum L.) introduced in the Northwest Croatian climate conditions. Phenolic compounds were measured by spectrophotometric methods, TAC was determined using DPPH and ABTS assays and RP by FRAP assay. All cultivars contained high mass fraction of TPC, TF, TA and lower mass fraction of TF3ols. Among the researched fruits, Sierra cultivar contained the highest amounts of all groups of phenolics, followed by Elliott>Bluecrop≥Duke. Significant differences were observed in phenolic mass fraction among different cultivars and growing seasons (p
Svrha je ovoga istraživanja odrediti udjel fenola: ukupne fenole (TPC), flavonoide (TF), antocijane (TA), flavan-3-ole (TF3ols), zatim ukupni antioksidacijski kapacitet (TAC) i redukcijsku snagu (RP) u četiri sorte borovnica (Vaccinium corymbosum L.) introduciranih u klimatskim uvjetima sjeverozapadne Hrvatske. Fenolni su spojevi određeni spektrofotometrijskim metodama, TAC je određen DPPH i ABTS metodama te RP FRAP metodom. Sve su sorte sadržavale veliku količinu TPC, TF, TA i manju količinu TF3ols. Među istraživanim sortama, sorta Sierra sadržavala je najveću količinu svih skupina fenolnih spojeva, zatim sorta Elliott te Bluecrop i Duke. Statistički značajne razlike utvrđene su u količini fenolnih spojeva različitih sorata te zbog sezone uzgoja (p
Databáze: OpenAIRE
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