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Sustainable recovery of grape skins for use in an apple beverage with antiglycation properties


An apple puree formulated with red grape skins was developed on pilot scale as a new beverage with antiglycation properties. The addition level of grape skins was selected by a liking test with 70 consumers. The selected formulation was a fibre‐rich source and delivered grape anthocyanins, flavonols and flavanols resulting in ~ twofold higher antiglycation activity than the apple puree. Pasteurisation (3‐D in the target microorganism Alicyclobacillus acidoterrestris) did not affect the antiglycation activity, which decreased by 30% upon sterilisation. Storage for 1 month in the temperature range 15–35 °C affected the contents of anthocyanins, monomeric, dimeric and oligomeric flavanols, while chlorogenic acid, flavonols and dihydrochalcones were stable. About 90% antiglycation activity was retained after one‐month storage at 15 °C. The use of red grape skin as ingredient could represent an opportunity for the apple processing industry to develop a value‐added product.

The overall scheme of the aim and the main finding in this study. A new beverage was developed with apple puree and red grape skins recovered from winemaking by‐products. The beverage was proposed to be used in the dietary prevention of damage due to advanced glycation end‐products. The functional apple beverage produced had high antiglycation efficacy and high liking ratings assigned by 70 consumers.

Authors:   Vera Lavelli, Pedapati S.C. Sri Harsha, Maria Piochi, Luisa Torri
Journal:   International Journal of Food Science & Technology
Year:   2016
Pages:   n/a
DOI:   10.1111/ijfs.13261
Publication date:   08-Nov-2016
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