Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/3153
Title: | The effect of postharvest ripening on strawberry bioactive composition and antioxidant potential |
Authors: | Goulas, Vlasios Manganaris, George A. |
Major Field of Science: | Natural Sciences |
Field Category: | Biological Sciences |
Keywords: | Anthocyanins;Corn oil;Radical scavenging activity;Emulsion;Fragaria x ananassa;Liposomes;Phenolics |
Issue Date: | 15-Aug-2011 |
Source: | Journal of the Science of Food and Agriculture, 2011, vol. 91, no. 10, pp. 1907-1914 |
Volume: | 91 |
Issue: | 10 |
Start page: | 1907 |
End page: | 1914 |
Journal: | Journal of the Science of Food and Agriculture |
Abstract: | Background: The aim of the present work was to evaluate the phytochemical profile and the antioxidant activity of strawberry fruit (cv. Camarosa) upon postharvest ripening at room temperature (20 °C) and to correlate them with qualitative attributes. Results: 'Camarosa' fruit retained an appreciable postharvest performance for up to 1 day shelf life; thereafter substantial quality deterioration was observed. An increased phenolic content, mainly attributed to hydroxycinnamic acids, flavonols and anthocyanins, was monitored after 3 days maintenance at 20 °C. The chromatographic fingerprint of athocyanins showed that pelargonidin-3-glucoside was the major anthocyanin, which increased with the increase of shelf life period, while cyanidin-3-glucoside and pelargonidin-3-rutinoside were found at lower concentrations. The potent radical scavenging activity, evaluated with four in vitro assays, showed a higher antioxidant capacity after 3 and 1 days of shelf life. In addition, the antioxidant effect of strawberry fruit extracts on lipid substrates and on an emulsion system showed a significant inhibition in the formation of conjugated diene hyperoxides. Interestingly, no direct correlation between the phytochemical profile and the quality attributes exist. Conclusion: 'Camarosa' fruit had acceptable quality attributes for fresh consumption and at the same time a high phytochemical content up to 1 day shelf life. The over-ripe fruit continued to be an excellent reservoir of natural antioxidants, pointing to its potential use as food antioxidant and nutritional supplement. |
URI: | https://hdl.handle.net/20.500.14279/3153 |
ISSN: | 10970010 |
DOI: | 10.1002/jsfa.4406 |
Rights: | © Society of Chemical Industry |
Type: | Article |
Affiliation : | Cyprus University of Technology |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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