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Polyphenolic Compositions and Chromatic Characteristics of Bog Bilberry Syrup Wines

Beijing Key Laboratory of Forestry Food Processing and Safety, Department of Food science, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 10083, China
Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Maurizio Battino
Molecules 2015, 20(11), 19865-19877;
Received: 21 September 2015 / Revised: 22 October 2015 / Accepted: 27 October 2015 / Published: 4 November 2015
(This article belongs to the Section Natural Products Chemistry)
PDF [356 KB, uploaded 4 November 2015]


Phenolic compounds determine the color quality of fruit wines. In this study, the phenolic compound content and composition, color characteristics and changes during 6 months of bottle aging were studied in wines fermented with bog bilberry syrup under three different pHs. The total anthocyanins and total phenols were around 15.12–16.23 mg/L and 475.82 to 486.50 mg GAE/L in fresh wines and declined 22%–31% and about 11% in bottle aged wines, respectively. In fresh wines, eight anthocyanins, six phenolic aids and 14 flavonols, but no flavon-3-ols were identified; Malvidin-3-O-glucoside, petunidin-3-O-glucoside and delphinium-3-O-glucoside were the predominant pigments; Chlorogentic acid was the most abundant phenolic acid, and quercetin-3-O-galactoside and myricetin-3-O-galactoside accounted for nearly 90% of the total flavonols. During 6 months of bottle storage, the amounts of all the monomeric anthocyanins and phenolic acids were reduced dramatically, while the glycosidyl flavonols remained constant or were less reduced and their corresponding aglycones increased a lot. The effects of aging on blueberry wine color were described as the loss of color intensity with a dramatic change in color hue, from initial red-purple up to final red-brick nuances, while the pH of the fermentation matrix was negatively related to the color stability of aged wine. View Full-Text
Keywords: bog bilberry syrup wine; polyphenolic composition; chromatic characteristics; bottle aging bog bilberry syrup wine; polyphenolic composition; chromatic characteristics; bottle aging

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Liu, S.-X.; Yang, H.-Y.; Li, S.-Y.; Zhang, J.-Y.; Li, T.; Zhu, B.-Q.; Zhang, B.-L. Polyphenolic Compositions and Chromatic Characteristics of Bog Bilberry Syrup Wines. Molecules 2015, 20, 19865-19877.

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