Transforming wine industry byproducts into nutritious, sustainable snacks through innovative food technology
Waste Reduction
Nutrition Enhancement
Sustainable Production
After grapes are pressed for wine and juice, what remains is grape pomace—a mix of skins, pulp, seeds, and stems. For centuries, this nutrient-packed material was often discarded or used as compost. But science has revealed that pomace is a treasure trove of bioactive compounds .
The challenge? Pomace is moist, perishable, and can have an astringent taste. The solution? Dehydrate it into a stable, versatile powder and combine it with a fruit that perfectly balances its flavor and functional properties: the pear .
Discover how grape pomace and pear work together to create nutritious snacks
The primary functional ingredient, providing dietary fiber, polyphenols, and natural color to snack products.
Acts as a natural binder, sweetener, and humectant (moisture-retainer), improving texture and taste while reducing added sugars.
A step-by-step approach to developing the perfect snack bar
Red grape pomace was dried and milled into a fine, ruby-red powder. Fresh pears were peeled, cored, and pureed into a smooth paste.
Researchers created several recipes with varying proportions of key ingredients:
All ingredients were mixed into uniform dough, shaped into bars, and baked at controlled temperatures to preserve heat-sensitive polyphenols.
The snack bars were evaluated for:
Nutritional Profile
Physical Properties
Sensory Evaluation
Data-driven insights reveal the optimal formulation
Formulation | Moisture Content (%) | Textural Hardness (N) | Stability Rating |
---|---|---|---|
Control (No Pomace/Pear) | 12.5 | 25.1 | Good |
10% Grape Pomace | 10.2 | 35.8 | Fair |
15% Grape Pomace + 20% Pear Puree | 11.8 | 28.4 | Excellent |
The combination of 15% grape pomace with 20% pear puree achieved the optimal balance of nutritional enhancement, sensory appeal, and shelf stability.
Diverting organic waste from landfills and creating value from byproducts
Creating snacks packed with fiber and natural antioxidants
Proving that "healthy" and "delicious" are not mutually exclusive
The next time you reach for a snack, remember that the future of food might just be found in what we used to throw away. It's a revolution, and it's tasting better than ever.