Process for producing soybean powder and process for poducing soybean milk

• US 20060013937A1
• Filed: 10/29/2003
• Published: 01/19/2006
• Est. Priority Date: 10/30/2002
• Status: Active Grant

• Current Assignee: Safe-Tech International Kabushikikaisha
• Original Assignee: Safe-Tech International Kabushikikaisha
• Inventors: Hagiwara, Miyuki, Shibata, Yasufumi
• Granted Patent: US 7,422,762 B2
• Time in Patent Office: Days
• US Class Current: 426/622
• CPC Class Codes: A23C 11/103 containing only proteins from pulses, oilseeds or nuts, e.g. nut milk
• CPC Class Codes: A23L 11/07 Soya beans, e.g. oil-extracted soya bean flakes A23L11/30 takes precedence
• CPC Class Codes: A23L 11/65 Soy drinks

Abstract

Lipoxygenase-free soybean grains are mechanically pulverized into fine particles and then subjected to heat drying treatment with water vapor having a temperature in the range of 130 to 250° C. under atmospheric pressure to form lumps of soybean powder. The lumps are formed into granules having controlled sizes by placing the lumps in a space defined by two plates having a predetermined distance therebetween and having a plurality of parallel grooves formed in the surfaces. The plates are in a state of relative rotation. This method allows the production of soybean powder free from disagreeable odor and taste and the production of soybean milk from the soybean powder, with inexpensive equipment in a quick process.

Claims

1. A method for producing soybean powder, comprising the steps of:

subjecting grains or crushed grains of lipoxygenase-free soybeans to heat drying treatment with water vapor having a temperature in the range of 130 to 250°

C. under atmospheric pressure; and

then mechanically pulverizing the grains into fine particles.

4. The method for producing soybean powder according to claim 1, wherein the heat drying treatment is performed for a time in the range of 30 to 300 seconds.

5. The method for producing soybean powder, wherein soybean milk is made from the soybean powder produced by the method as set forth in claim 1.

2. A method for producing soybean powder, comprising the steps of:

mechanically pulverizing lipoxygenase-free soybean grains into fine particles; and

then subjecting the fine particles to heat drying treatment with water vapor having a temperature in the range of 130 to 250°

C. under atmospheric pressure.

3. A method for producing soybean powder, comprising the steps of:

mechanically pulverizing lipoxygenase-free soybean grains into fine particles;

subsequently subjecting the fine particles to heat drying treatment with water vapor having a temperature in the range of 130 to 250°

C. under atmospheric pressure to form lumps of soybean powder; and

then forming granules having controlled sizes by placing the lumps in a space defined by two opposing plates having a predetermined distance therebetween, at least one of the plates having a plurality of substantially parallel grooves in the surface thereof, the plates being in a state of relative rotation.

6. A method for producing soybean powder, comprising the step of forming granules having controlled sizes by placing a soybean powder material which has been processed into lumps by use of superheated water vapor, in a space defined by two opposing plates having a predetermined distance therebetween, the two plates having a plurality of parallel grooves in the surface thereof, at least one of the two plates being rotated.

7. The method for producing soybean powder according to claim 6, wherein the grooves have a pitch of 1.5 to 2.5 mm and a depth of 0.20 to 2.5 mm.