High contents also exist for vitamin K, magnesium, zinc and potassium (table).For human consumption, soybeans must be cooked with "wet" heat to destroy the trypsin inhibitors (serine protease inhibitors).If the seed coat is cracked, the seed will not germinate.The scar, visible on the seed coat, is called the hilum (colors include black, brown, buff, gray and yellow) and at one end of the hilum is the micropyle, or small opening in the seed coat which can allow the absorption of water for sprouting.is a species of legume native to East Asia, widely grown for its edible bean which has numerous uses.Fat-free (defatted) soybean meal is a significant and cheap source of protein for animal feeds and many packaged meals.Moreover, soybeans can produce at least twice as much protein per acre than any other major vegetable or grain crop besides hemp, five to 10 times more protein per acre than land set aside for grazing animals to make milk, and up to 15 times more protein per acre than land set aside for meat production.
The hull of the mature bean is hard, water-resistant, and protects the cotyledon and hypocotyl (or "germ") from damage.
Strains that continue nodal development after flowering are termed "indeterminates" and are best suited to climates with longer growing seasons.
The fruit is a hairy pod that grows in clusters of three to five, each pod is 3–8 cm (1.2–3.1 in) long and usually contains two to four (rarely more) seeds 5–11 mm in diameter.
This heat stability enables soy food products requiring high temperature cooking, such as tofu, soy milk and textured vegetable protein (soy flour) to be made.
Soy is a good source of protein, amongst many others, for vegetarians and vegans or for people who want to reduce the amount of meat they eat, according to the US Food and Drug Administration: Soy protein products can be good substitutes for animal products because, unlike some other beans, soy offers a 'complete' protein profile. Soy protein products can replace animal-based foods—which also have complete proteins but tend to contain more fat, especially saturated fat—without requiring major adjustments elsewhere in the diet.
Under ideal conditions, stem growth continues, producing new nodes every four days.