This paper reports our discovery of the main mineral components of soybeans and soybean sprouts. The main mineral components of soybeans were different in quantity in the different types. There is more calcium in Tamahomare than in any other type, about 1.4 times as much as in Murayutaka. Phosphorus in Tamahomare shows the highest value, 1.2 times as much as Turu-kono. Manganese in Tamahomare shows the highest value, 1.4 times as much as Murayutaka. Murayutaka contains the greatest amount of nickel, about 2.5 times as much as Enrei. As for the contents of calcium, phosphorus, sodium, potassium, magnesium, zinc, and copper in different parts of the soybean sprouts, seed leaves come first, followed by roots and hypocotyls. As for the contents of manganese, seed leaves, hypocotyls, and roots are their order of quantity. Seed leaves have more mineral components than any other part of the sprouts. Compared with hypocotyls, seed leaves contain about 34 times as much in one element, and about 2 times in another element in case of the least difference. Suppose the total amount of soybean sprouts is 100,the weight ratio in every part is as follows ; seed leaves 38.5,hypocotyls 54.6,roots 6.9. Even compared with this ratio, it can be found that …
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