| 摘要 |
PROBLEM TO BE SOLVED: To obtain an excellent antioxidant by forming a beet/sugarcane antioxidant composition which has specified physicochemical properties such as elemental analysis values, mol.wt., m.p., organic content, solubility in solvents, color reaction, discrimination among basicity, acidity and neutrality, color, shape, antioxidant properties and ultraviolet-absorbing capability. SOLUTION: This composition has such physicochemical properties that the elemental analysis values of C, H and N are 47.8%, 6.3% and 9.8%, respectively; the mol.wt. is 500-50,000; the m.p. is 300 deg.C or higher; it does not change even at 300 deg.C or higher; the organic content is 90-95%; it is completely soluble in water, easily soluble in an aqueous 50% ethanol solution, hardly soluble in an aqueous 75% ethanol solution and insoluble in ethanol; it has such color reactions that the ninhydrin reaction is + and the phenol-sulfuric acid reaction is +; its 1% aqueous solution is brown and clear; it has a pH of 5.0-6.5; it is a brown powder; and it exhibits strong antioxidant properties and ultraviolet absorption capability. This composition is prepared by removing low-mol.-wt. substances from a waste liquid separated in the chromatography step of a beet/cane sugar production plant. |
