Ifie, I, Abrankó, L, Villa Rodriguez, JA et al. (4 more authors) (2018) The effect of ageing temperature on the physicochemical properties, phytochemical profile and α-glucosidase inhibition of Hibiscus sabdariffa (roselle) wine. Food Chemistry, 267. pp. 263-270. ISSN 0308-8146
Abstract
The effect of temperature (6, 15 and 30 °C) during ageing on the colour, phytochemical composition and bioactivity of roselle wine was investigated over 12 months. At the end of ageing, wines stored at 6 °C had the highest colour density and lowest polymeric anthocyanins. The initial concentration of most of the individual phenolic compounds decreased during ageing, with reduction of monomeric anthocyanins contributing to the formation of anthocyanin-derivatives (pyranoanthocyanins), eight of which were identified tentatively and reported here for the first time in roselle wine. The decrease in individual phenolic compounds did not affect inhibition of α-glucosidase (maltase) activity, which remained relatively low but stable throughout ageing. Diethyl succinate was the only volatile clearly influenced by ageing temperature, with the most pronounced effect at 30 °C (∼256 fold increase). In summary, the final concentrations of anthocyanins and diethyl succinate were the major compounds influenced by ageing temperature.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Elsevier Ltd. This is an author produced version of a paper published in Food Chemistry. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Hibiscus sabdariffa; Roselle wine; Ageing temperature; Phytochemicals; Pyranoanthocyanins; α -Glucosidase inhibition |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Food Science and Nutrition (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 May 2017 09:06 |
Last Modified: | 24 Jul 2018 20:01 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.foodchem.2017.05.044 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:116364 |