| 摘要 |
The purposes of the present invention is to provide a method for the production of soybean material having a high germ concentration with a high yield, in which the germ is completely removed from the soybean (cotyledon), crushed cotyledon with a small diameter, which will be inevitably produced in the crudely crushing step of the soybean and can not be removed by the sieve having a square opening, is separated from the germ fraction, and mingling of the crushed cotyledon is prevented in order to maximize the yield of the germ that has scarcity value. The present invention relates to a method for producing a soybean material having a germ concentration of 35-80 wt %, comprising crudely crushing a starting soybean material or its selected seeds from which foreign substances have been removed into a size of ½ or less of the original one, and separating and concentrating a soybean germ fraction by means of a sieve having an opening with 0.5-1.4 mm in width and with a ratio of length/width of 2 or more, oil and fat obtained from the soybean material produced according to the present invention or an isoflavone-rich product, food containing said oil and fat, and an agent for lowering cholesterol comprising as an effective component said oil and fat.
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