Abstract: Disclosed is a process for fractionating soybean protein into 7S globulin, 11S globulin or a lipophilic protein at a high purity with good efficiency, which relates to a fractionation technique for soybean protein into proteins having characteristic properties (7S globulin, 11S globulin and a lipophilic protein) and which is a process practicable at a food industrial level. It is found that soybean protein can be fractionated into 7S globulin, 11S globulin or a lipophilic protein at a high purity with good efficiency by extracting soybean milk from processed soybean which has been subjected to a water-insolubilization treatment specific to a desired protein and fractionating the resulting soybean milk or soybean curd refuse into the desired protein.

Abstract: Disclosed is a process for fractionating soybean protein into 7S globulin, 11S globulin or a lipophilic protein at a high purity with good efficiency, which relates to a fractionation technique for soybean protein into proteins having characteristic properties (7S globulin, 11S globulin and a lipophilic protein) and which is a process practicable at a food industrial level. It is found that soybean protein can be fractionated into 7S globulin, 11S globulin or a lipophilic protein at a high purity with good efficiency by extracting soybean milk from processed soybean which has been subjected to a water-insolubilization treatment specific to a desired protein and fractionating the resulting soybean milk or soybean curd refuse into the desired protein.

Abstract: By heating a solution or paste containing soybean ?-conglycinin protein under acidic conditions, it is possible to provide soybean ?-conglycinin protein whose high hydration property and high viscosity, which are problematic in various food processing using it or at the time of ingestion thereof, are improved.

Abstract: A body fat percentage-lowering agent or an inhibitor for an increase in body fat percentage containing soybean 7S protein as the active ingredient and foods containing the same. As the soybean protein 7S protein, use is made of a protein the purity of which is elevated by sufficiently separating from 11S globulin, preferably a protein having reduced contents of polar lipids and phytic acid.

Abstract: A method for fractionating a soybean protein into highly pure 7S globulin and 11S globulin efficiently in an industrial scale is provided, said method comprising warming a solution containing a soybean protein under a weakly acidic condition followed by fractionating at pH 5.6 to 6.6 into a soluble fraction and an insoluble fraction. If necessary, a treatment with a phytase may also be employed in the production method to fractionate into a 7S globulin and a 11S globulin.

Abstract: The present invention provides a neutral fat reducing composition which reduces a blood neutral fat safely and efficiently, and whose active ingredient is a soybean protein containing 50% or more of a 7S globulin fractionated from a soybean protein and 0.2% or less of phytate based on the proteins. Its effect is further enhanced by removing a oil-body-associated protein and reducing a chloroform methanol-extractable oil fraction.

Abstract: It is aimed at developing a novel method of fractionating 7S globulin and 11S globulin, in particular, a highly accurate and efficient fractionation method which can be performed on an industrial scale. It is also intended to obtain a protein fraction which is little contaminated with oil-body-associated proteins and exhibits the characteristics inherent to highly pure 7S globulin and 11S globulin. A process for producing soybean protein characterized by comprising heating a solution containing soybean protein to 30 to 75° C. under acidic conditions of pH 3.8 to 6.8 and then fractionating it into a soluble fraction and an insoluble fraction at an ionic strength of 0.02 or more and a pH value of 4.5 or higher but lower than 5.6.

Abstract: To easily take soybean 7S globulin in an effective amount appropriate for the purpose (for example, such an amount as expected as efficacious in achieving a physiological effect of controlling neutral fat level in blood), it is intended to provide a shaped food having a favorable taste and a process for producing the same. It is secondarily intended to provide a processing method appropriate for preparing such a food with a favorable taste without inhibiting the detection of the 7S component. A process for producing a shaped food characterized by comprising swelling a moisture-containing soybean 7S protein dough by heating and drying.

Abstract: A body fat percentage-lowering agent or an inhibitor for an increase in body fat percentage containing soybean 7S protein as the active ingredient and foods containing the same. As the soybean protein 7S protein, use is made of a protein the purity of which is elevated by sufficiently separating from 11S globulin, preferably a protein having reduced contents of polar lipids and phytic acid.

Abstract: By heating a solution or paste containing soybean ?-conglycinin protein under acidic conditions, it is possible to provide soybean ?-conglycinin protein whose high hydration property and high viscosity, which are problematic in various food processing using it or at the time of ingestion thereof, are improved.

Abstract: A jelly food containing soybean protein that even when a soybean protein is contained, realizes high storage stability, exhibits low probability of deposition at a weak acid zone and ensures excellent flavor. In particular, jelly food wherein use is made of low phytic acid soybean 7S-protein. More particularly, a jelly food containing soybean 7S-protein wherein the phytic acid content is 0.2% or less, preferably 0.1% or less, per protein.

Abstract: A method for fractionating a soybean protein into highly pure 7S globulin and 11S globulin efficiently in an industrial scale is provided, said method comprising warming a solution containing a soybean protein under a weakly acidic condition followed by fractionating at pH 5.6 to 6.6 into a soluble fraction and an insoluble fraction. If necessary, a treatment with a phytase may also be employed in the production method to fractionate into a 7S globulin and a 11S globulin.

Abstract: The present invention provides a neutral fat reducing composition which reduces a blood neutral fat safely and efficiently, and whose active ingredient is a soybean protein containing 50% or more of a 7S globulin fractionated from a soybean protein and 0.2% or less of phytate based on the proteins. Its effect is further enhanced by removing a oil-body-associated protein and reducing a chloroform methanol-extractable oil fraction.

Abstract: A process for preparing a separated soybean protein, by the steps of preparing an aqueous slurry of defatted soybeans, removing water-insoluble components from the slurry and collecting a protein component from the obtained soybean milk, wherein in preparing an aqueous slurry of defatted soybeans, an antioxidant and a chelating agent are added, or at least one member selected from the group consisting of ascorbic acid, erythorbic acid and their salts is added in an amount of at least 0.1 part by weight per 100 parts by dry weight of the defatted soybeans. The process gives a soybean protein which shows improved resistance to discoloration when heat-treated at a high temperature.

Abstract: This invention provides a process for preparing a textured soybean protein (TSP), the process having the steps of pressurizing and heating a raw material containing a soybean protein and water, quickly releasing the pressure to texturize the protein, bringing the obtained TSP into contact with steam while the TSP remains hot and is not completely dried. According to the process of this invention, a TSP having a good flavor can be produced in a simple and economical manner.

Abstract: A process for producing a soybean protein material involves heating a soybean protein solution in the presence of an alkaline earth metal and then slowly freezing the solution. The soybean protein material formed by the method has a structure in which the layers are oriented along the non-cell ice crystals. The soybean protein material produced by the method has a very smooth mouthfeel in its raw condition but has a mouthfeel similar to that of meat when heated.

Abstract: A soybean protein having both excellent color tone and heat gelling properties is disclosed. The soybean protein has a color tone of 25 or more as a z value of its 5% aqueous solution measured by a color difference meter and a heat-gelling value of 250 g.multidot.cm or more as a gel strength of its 18% aqueous solution heated at 80.degree. C. for 30 minutes measured by a rheometer with a plunger ball of 4 mm diameter. A process for producing a soybean protein comprising adding 2 to 5 parts by weight of water to one part by weight of defatted soybeans and holding the mixture at 55.degree. to 80.degree. C. for 10 minutes or more before extraction of the soybean protein from the defatted soybeans with water is also disclosed.

Abstract: There is disclosed a process for producing a soybean protein material and a soybean protein by extracting defatted soybean milk from a defatted soybean raw material in an aqueous system by preventing association of soybean proteins, separating the defatted soybean milk from the system to obtain an extraction residue as the soybean protein material, and isolating a soybean protein from the defatted soybean milk, said defatted soybean milk being kept at 40.degree. C. or lower until isolation of said soybean protein. The isolated soybean protein having properties that can form a transparent solution and gel which cannot be obtained by a conventional isolated soybean protein is disclosed. The soybean protein material has excellent water retention and oil retention together with minimized mouthfeel change due to freeze-thaw treatment.

Abstract: There is disclosed a process for producing a soybean protein material which comprises the steps of: hydrolyzing soybean protein with a protease in an aqueous system to an extent of hydrolysis of 5 to 20; if necessary, emulsifying an oil-and-fat ingredient with soybean protein in an amount of 5 to 50 parts by weight per 100 parts by weight of the soybean protein before or after the hydrolysis step; drying the resultant emulsified mixture; and, optionally, a step for dispersing an emulsifier being provided at any stage after emulsification with the oil-and-fat ingredient. The soybean protein material thus obtained has taste, color and water-dispersibility suitable for a pickling solution having a high concentration and thick drinking food such as soup with less foaming property.

Abstract: A process for producing an edible proteinaceous film entails kneading and melting a raw material containing water and protein with heating by an extruder, extruding the melted material through a die in an extruder to form a tubular extrudate, providing a gas at a pressure above atmospheric pressure to the interior of the tubular extrudate while exhausting the gas, and holding and receiving the tubular extrudate with a take-off means. An apparatus for use with the method affords edible films. The apparatus and process are particularly advantageous for forming edible films from various sources of soybean protein.