GB466882A - Treating seeds, beans and the like - Google Patents

Abstract

Oil and an enzyme-containing flour are prepared from oil-bearing seeds, beans, and the like by extracting the oil from the seeds &c. with a solvent, removing the solvent containing the oil by pressure, drying the residue and grinding it to flour, the temperature throughout the treatment being below the decomposition temperature of the enzymes in the original material and in any case below 70 DEG C. The material, e.g. comminuted soy beans, is admixed with a solvent, e.g. ethyl acetate, in an amount sufficient thoroughly to wet the meal, e.g. an amount equal to the volume of the meal, the temperature being maintained below 50 DEG C., and preferably at 30--40 DEG C. The solvent-treated meal is then freed from the solvent by subjecting to pressure, e.g. a pressure of 5000--15000 lb. per square inch, e.g. in a filter press. Before the application of pressure, part of the solvent may be removed by filtration or centrifuging. After pressing, the residue is dried at a temperature of below 50 DEG C. and ground to flour. The solvent is separated from the oil by distillation. Other solvents specified are acetone, benzene and petroleum ether.ALSO:An enzyme-containing flour is prepared from oil-bearing seeds, beans, and the like by extracting the oil from the seeds &c. with a solvent, removing the solvent containing the oil by pressure, drying the residue and grinding it to flour, the temperature throughout the treatment being below the decomposition temperature p of the enzymes in the original material and in any case below 70 DEG C. The material, e.g. comminuted soy beans, is admixed with a solvent, e.g. ethyl acetate, in an amount sufficient thoroughly to wet the meal, e.g. an amount equal to the volume of the meal, the temperature being maintained below 50 DEG C., and preferably at 30-40 DEG C. The solvent-treated meal is then freed from the solvent by subjecting to pressure, e.g. a pressure of 5000-15,000 lb. per square inch, e.g. in a filter press. Before the application of pressure, part of the solvent may be removed by filtration or centrifuging. After pressing, the residue is dried at a temperature of below 50 DEG C. and ground to flour. Other solvents specified are acetone, benzene and petroleum ether.ALSO:An enzyme-containing flour is prepared from oil-bearing seeds, beans, and the like by extracting the oil from the seeds &c. with a solvent, removing the solvent containing the oil by pressure, drying the residue and grinding it to flour, the temperature throughout the treatment being below the decomposition temperature of the enzymes in the original material and in any case below 70 DEG C. The material, e.g. comminuted soy beans, is admixed with a solvent, e.g. ethyl acetate, in an amount sufficient thoroughly to wet the meal, e.g. an amount equal to the volume of the meal, the temperature being maintained below 50 DEG C., and preferably at 30-40 DEG C. The solvent-treated meal is then freed from the solvent by subjecting to pressure, e.g. a pressure of 5000-15000 lb. per square inch, e.g. in a filter press. Before the application of pressure, part of the solvent may be removed by filtration or centrifuging. After pressing, the residue is dried at a temperature of below 50 DEG C. and ground to flour. Other solvents specified are acetone, benzene and petroleum ether.