A Mini‐Review on Brewer's Spent Grain Protein: Isolation, Physicochemical Properties, Application of Protein, and Functional Properties of Hydrolysates

There is a growing demand in reusing agro‐industrial waste to enrich food proteins and develop new protein‐related products. Brewer's spent grain (BSG), the byproducts generated from the processing of beer‐brewing industry, is rich in abundant protein (26 to 30%) with good physicochemical properties and nutritional benefits. BSG is mainly composed of four proteins including hordein, gluten, globulin, and albumin. The methods for extracting...