ArticleFoods (Basel, Switzerland)2025
Sensory and Chemical Characterization of Upcycled Pomace- and Whey-Based Piquette Beverages.
Article in Foods (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Upcycling, or utilizing materials that would otherwise go to waste, enables the creation of novel products that offer sustainability advantages and generate additional value. This study evaluates the feasibility of producing alcoholic beverages using yogurt acid whey (YAW) and grape pomace (GP), byproducts of the dairy and wine industries, respectively, and compares them to commercial grape pomace beverages (piquettes) in terms of sensory attributes and chemical composition. Two YAW-GP piquettes were produced, and five commercial piquettes were obtained. Sugars and organic acids were quantified using HPLC-RID, and semi-quantitative volatile composition was determined using HS-SPME-GC-MS/MS. Descriptive analysis was conducted using a trained panel of 11 individuals. The YAW products had higher ratings for dairy, salty, acidic, and umami attributes, and lower ratings for bitterness, sweetness, red fruit, dried fruit, and overall fruity characteristics. YAW beverages were higher in titratable acidity (TA), lactose, lactic acid, citric acid, galactose, hexanoic acid, 3-methylpentanol, 1-octanol, and 1-octen-3-ol, and lower in ethanol and linalool. The commercial products were differentiated based on ethanol content, red fruit, dried fruit, fruitiness, chemical, and barnyard aromas. These results can be used to understand the breadth of chemical and organoleptic signatures of this new beverage category, which can be leveraged by stakeholders interested in entering the market.
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