Antioxidant extracted from the defatted ricebran
AssigneeNong Shim Co., Ltd.
InventorsZae I. Shin, Young S. Chang, Woo S. Kang, Sung U. Jung
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Abstract
An antioxidant extracted from the defatted ricebran which is obtained by the process comprising the steps of: carrying out the 1st extraction of the defatted ricebran using the mixed solvent of water and ethanol (1:0.8-1.2) at 50.degree.-80.degree. C., obtaining the residue separated from the 1st extracted solution by centrifugation, carrying out the 2nd extraction of the separated residue using the water at 55.degree.-80.degree. C., mixing the 1st extracted solution and 2nd extracted solution, and concentrating the mixed solution.
Claims6
An antioxidant extracted from defatted ricebran which is obtained by the process comprising the steps of:
- a) performing a first extraction of the defatted ricebran by contacting a solvent of 40-60% ethanol in water with the defatted ricebran for 1-12 hours at 50.degree.-80.degree. C. to obtain a first extracted solution, wherein the weight ratio of the solvent:
- ricebran is in the range of 4-5:1,
- b) separating a residue from the first extracted solution by centrifugation,
- c) performing a second extraction of the separated residue by contacting the residue with water for 2-3 hours at 50.degree.-80.degree. wherein the weight ratio of water:
- residue is 4-5:1, to obtain a second extracted solution,
- d) mixing the first extracted solution and second extracted solution,
- e) concentrating the mixed solution to a range of 40-50% water content, and
- f) adding ethanol to the antioxidant produced in (e) in the weight ratio of 1-10% of total solution to enhance preservability of the antioxidant.
An antioxidant extracted from defatted ricebran which is obtained by the process comprising the steps of:
- a) performing a first extraction of the defatted ricebran by contacting a solvent of 40-60% ethanol in water with the defatted ricebran for 1-12 hours at 50.degree.-80.degree. C. to obtain a first extracted solution, wherein the weight ratio of the solvent:
- ricebran is in the range of 4-5:1,
- b) separating a residue from the first extracted solution by centrifugation,
- c) performing a second extraction of the separated residue by contacting the residue with water for 2-3 hours at 50.degree.-80.degree. C. wherein the weight ratio of water:
- residue is 4-5:1, to obtain a second extracted solution,
- d) concentrating the first extracted solution and second extracted solution to a range of 5-40% water content respectively,
- e) mixing the concentrated first and second extracted solutions, and
- f) wherein ethanol is added to the antioxidant produced in the weight ratio of 1-10% of total solution to enhance preservability of the antioxidant.
Dependencies are inferred from the claim text.