Application of Punicalagin/ellagic Acid to Improve Oxidative and Colloidal Stability of Beverages (ESP. Beer)

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This invention introduces the use of ellagic acid and/or punicalagin (compounds derived from natural sources like pomegranate) as stabilizing agents in the production of beverages, particularly fermented drinks such as beer. The addition of these agents during various stages of brewing improves both oxidative and colloidal stability by chelating pro-oxidative transition metals, especially iron, and reducing radical formation. This process leads to longer-lasting freshness and reduced staling in beverages without negatively affecting taste, color, or other crucial properties.

Use CasesContent extracted from patent full text and abstract with AI.

• Industrial brewing of beer to enhance shelf-life and flavor stability.
• Craft breweries aiming for natural ingredient-based stability solutions.
• Production of other fermented beverages such as wine, kombucha, and kvass for improved storage stability.
• Use in soft drinks or non-alcoholic beverages that are sensitive to oxidation or haze formation.
• Development of clean label beverages using natural fruit extracts (e.g., pomegranate) for consumer acceptance.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly improves the oxidative stability of beverages, reducing off-flavors and staling over time.
• Enhances colloidal stability, preventing haze and sediment formation during storage.
• Uses natural compounds with high consumer acceptance (e.g., extracts from edible fruits like pomegranate).
• More effective iron chelation compared to conventional stabilizers such as tannic acid or gallotannins.
• Applicable at different stages of the beverage production process for flexible manufacturing integration.
• Possible to maintain stable beverage color and composition, even after extended aging.
• Offers a natural and potentially cleaner label alternative to artificial or less accepted additives.
• Can be tailored easily to match the raw material and brewing method (e.g., different malt types).

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Patent Abstract

The present invention relates to a method for producing a beverage, preferably a fermented beverage with improved oxidative and colloidal stability. The present invention further relates to a beverage produced by a method for producing a beverage. The present invention also relates to a beverage having increased stability, preferably increased oxidative flavor stability and colloidal stability. The present invention further relates to a use of a stabilizing agent for preparing a beverage having increased stability.