“…It is worth pointing out that BSG represents 85% of the brewing waste and is a valuable source of bioactive compounds such as minerals, vitamins, fiber (hemicellulose, lignin, cellulose), proteins, and amino acids [3,5]. BSG contains important amounts of B group vitamins such as thiamine (B 1 ), riboflavin (B 2 ), niacin (B 3 ), pyridoxine (B 6 ), pantothenic (B 5 ), and folic acids, but also higher amounts of minerals such as calcium (Ca), sodium (Na), and magnesium (Mg), together with manganese (Mn), iron (Fe), potassium (K), and copper (Cu) [6].…”