The black soybean fruit is a fruit introduced from the former Soviet Union. It has a very high nutritional value, especially with a high vitamin content, playing a very obvious role in preventing vitamin deficiency. Moreover, it tastes sour and sweet, having a good appetizing effect. Making fruit wine from black soybean fruits not only nourishes the stomach but also promotes the reduction of blood lipids, making it very nutritious.

The fruit of black soybeans is rich in nutrients, containing various vitamins such as A, B, and C. Particularly, the content of vitamin C is more prominent, with the amount of vitamin C in every 100 grams of fresh fruit exceeding 200 milligrams, which is 30 to 60 times higher than that of apples and 4 to 10 times higher than that of oranges.

The sugar content of black soybeans ranges from 7% to 11%, the organic acid content from 1.1% to 3.7%, and the oil content in their seeds is above 16%. The mature black soybean fruit flesh is abundant, juicy, fragrant, and sweet and sour with moderate taste, having a unique flavor. If everyone can persist in eating one or two black soybean fruits per day or drinking half a pound of black soybean wine, it can meet the body’s need for vitamin C.

They can prevent vitamin deficiency and other infectious diseases. Black soybean fruits and their products have the effects of appetite stimulation, aiding digestion, enriching blood, lowering blood pressure, and invigorating the spirit. Not only can black soybean fruits be eaten raw, but they are also suitable for processing and are an important raw material in the food industry. Products such as fruit wine, fruit sugar, jam, juice, and cool drinks made from black soybean fruits are popular both domestically and internationally.

The black soybean fruit, also known as plum, is a special fruit tree of the genus Rhododendron from the family Ericaceae, introduced from the Soviet Union. Its lifespan can reach over 20 years. Among the countries that produce a large amount of black soybeans, the United Kingdom, Poland, and West Germany are prominent, followed by Hungary, France, the Soviet Union, Yugoslavia, the Netherlands, Bulgaria, and Belgium, which also produce a small amount. The fruit of black soybeans is rich in nutrients, containing various vitamins such as A, B, and C, with a particularly high content of vitamin C.