摘要:
A soybean hydrolyzate is disclosed. The hydrolyzate is of a high nutritional value and excellent in protein absorbability. Moreover, it is free from bean-like or grass-like smelling that is characteristic of soybean, as well as from bitter taste. Consequently, the hydrolyzate is very valuable food as protein source. The hydrolyzate is characterized by that the soluble fraction of the hydrolyzate contains amino nitrogen in an amount in the range from 5 to 20%, preferably from 10 to 15% of the total nitrogen of said fraction. The hydrolyzate is prepared by pulverizing soybean, adding water to the pulverized soybean to form a slurry of a solid content in the range from 1 to 20%, heating the slurry at a temperature from 60 to 100°C for a period from 5 to 180 minutes, homogenizing the slurry under a high pressure and hydrolyzing the homogenates with a neutral protease. As the protease is particularly suitable protease produced by Bacillus subtilis.
摘要:
A soybean hydrolyzate is disclosed. The hydrolyzate is of a high nutritional value and excellent in protein absorbability. Moreover, it is free from bean-like or grass-like smelling that is characteristic of soybean, as well as from bitter taste. Consequently, the hydrolyzate is very valuable food as protein source. The hydrolyzate is characterized by that the soluble fraction of the hydrolyzate contains amino nitrogen in an amount in the range from 5 to 20%, preferably from 10 to 15% of the total nitrogen of said fraction. The hydrolyzate is prepared by pulverizing soybean, adding water to the pulverized soybean to form a slurry of a solid content in the range from 1 to 20%, heating the slurry at a temperature from 60 to 100°C for a period from 5 to 180 minutes, homogenizing the slurry under a high pressure and hydrolyzing the homogenates with a neutral protease. As the protease is particularly suitable protease produced by Bacillus subtilis.
摘要:
Processed soybean food containing 11 mg or below of phosphorus and 40 mg or below of potassium per g of protein and a method for preparing the same are disclosed. As contents of phosphorus and potassium among the soybean components in the processed soybean food of the invention are selectively reduced, the processed soybean food is suitable for use in alimentotherapy for renal diseases. AS examples of the processed soybean foods are mentioned soybean milk, puffed foods, bean curd and cake mix. The above-mentioned foods are prepared from treated soybean with reduced phosphorus and potassium contents respectively by 30% or more. Such treated soybean is prepared by soaking soybean in an aqueous solution at a pH of 3.0-6.5 to elute phosphorus and potassium components in the soybean into said aqueous solution and, if required, washing said soybean with water at a pH of 5.0-9.0.