ASCORBIC ACID DIGESTIBILITY PROTEIN HYDROLYSATES ELECTROSTATIC COMPLEXES HEAT TREATMENT AMARANTH PROTEIN CONCENTRATE MICROSTRUCTURE PLANT PROTEINS TEXTURE GEL HIGH SUGAR SYSTEM PROCESS ENGINEERING STORAGE COMPLEXES HYDROLYSIS YEAST PROTEIN COLLOIDS PRE-TREATMENT RHEOLOGICAL PROPERTIES EXTRACTION PROCESS PROTEASES DRYING HIGH PRESSURE MILK PROTEIN POLYSACCHARIDES HARD-TO-COOK BEANS EXPERIMENTAL MIXTURE DESIGN DRY BEANS TROPICAL FRUITS SOY PROTEIN CONCENTRATE SOLUBILITY SOY PROTEIN EXTRUSION COOKING BIOLOGICAL ACTIVITIES FOAMING PROTEIN NUTRITIVE PROPERTIES NUTRITIONAL PROPERTIES