Variation in the Bioactive Compound Content at Three Ripening Stages of Strawberry Fruit

Molecules

Sandra Voၺ²  Jana Šic Žlabur²  Nadica Dobriპvić²  Lidija Jakobek¹  Marijan ᘎruga¹  Ante Galić² 

[1]Department of Applied Chemistry and Ecology, Faculty of Food Technology, J. J. Strossmayer, University of Osijek, Kuhačeva 18, HR-31000 Osijek, Croatia

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[3]Department of Agricultural Technology, Storage and Transport, Faculty of Agriculture, University of Zagreb, Svetošimunska cesta 25, HR-10000 Zagreb, Croatia

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关键词: Fragaria x ananassa Duch.;    harvest period;    anthocyanin content;    phenolic acids;    flavonoids;   

DOI  :  10.3390/molecules190710370

来源: mdpi

【 摘 要 】

During the harvest season of two consecutive years, five strawberry cultivars (‘Arosa’, ‘Elsanta’, ‘Marmolada’, ‘Miss’ and ‘Raurica’), grown in the continental part of the Republic of Croatia, were examined. Strawberry fruits quality was evaluated by individual phenol compounds, individual anthocyanins and fruit color. Fruits were harvested in three different periods. Analyzed strawberry cultivars show very good average values of the studied phenolic acids and flavonoids with predominant caffeic acid and epicatechin content in all researched strawberry cultivars. Considering the content of individual anthocyanins, pelargonidin 3-glucoside is predominant in strawberry extract followed by cyanidin-3-glucoside and pelargonidin 3-rutinoside. The correlation between individual anthocyanin content and chromaticity parameters was detected in all strawberry cultivars, additionally correlation coefficients and statistical significance were much lower. The results show a positive association between cultivar and harvest time on strawberry pulp color, with each of the color variables, a, b, a/b ratio, C, L and h° values.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.