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Current context in which the emphasis is on promoting the circular economy, due to environmental policies, the food industry is constrained to develop new strategies to reduce food waste. The beer industry generates significant amounts of by-products that are often incorporated into animal feed or aquaculture. Yeast, the second by-product of the brewing process is generated in large quantities of 1.5 kg to 3 kg/100 L of beer produced. By using various purification processes, the residual brewer's yeast can be easi...