Global Spent Grain Isolate Market to Reach USD 737.1 Mn by 2036, Expanding at 15.7% CAGR Driven by Upcycled Sustainable Protein Innovation Brewer’s Spent Grain Leads with 68% Share; Food & Beverage Application Dominates at 44%; South Korea Records Fastest Growth at 18.4% CAGR New York, NY – July 16, 2026 – The global Spent Grain Isolate Market, valued at USD...