This study aimed to assess the effects of industrial-scale oil-pressing techniques (hydraulic pressing (HP), twin-screw pressing (TP)), and organic solvent extraction (OE) on the physicochemical properties and antioxidant activities of protein isolates derived from Camellia (Camellia oleifera Abel.) seed cakes. The predominant protein fractions in camellia seed cake were albumin (32-37 mg/g) and glutelin (19-27 mg/g), and the twin-screw pressed cake had a lower total protein content than the others. Spectral analysis showed that the & alpha;-helix con-tent increased at the expense of random co...
