Abstract: A protein product and an extraction method for making the protein product. Raw materials of the product optionally contains macromolecular carbohydrates and/or fat, and the method does not use organic solvents. The protein product contains prolamin and carbohydrates, wherein the prolamin accounts for 70 wt % or above of the protein (dry-basis), the ?-prolamin accounts for 75 wt % or above of the prolamin, the ?-prolamin accounts for 20 wt % or below of the prolamin, and the ?-prolamin accounts for 6 wt % or below of the prolamin.

Abstract: A reversible enrichment material, its preparation and application thereof are provided. The reversible enrichment material includes an inorganic carrier; and an active metal salt, a first metal salt promoter and a second metal salt promoter supported on the inorganic carrier. The active metal salt is a soluble silver salt, a soluble copper salt, or a combination thereof. The first metal salt promoter is one or more selected from the group consisting of soluble salts of Group IA, Group IIA and Group IIIA metals, and the second metal salt promoter is one or more selected from the group consisting of soluble salts of transition metals other than Group IB metals. The reversible enrichment material can realize effective separation of saturated hydrocarbon from unsaturated hydrocarbon and has good reversibility.

Abstract: A protein product and an extraction method for making the protein product. Raw materials of the product optionally contains macromolecular carbohydrates and/or fat, and the method does not use organic solvents. The protein product contains prolamin and carbohydrates, wherein the prolamin accounts for 70 wt % or above of the protein (dry-basis), the ?-prolamin accounts for 75 wt % or above of the prolamin, the ?-prolamin accounts for 20 wt % or below of the prolamin, and the ?-prolamin accounts for 6 wt % or below of the prolamin.