Its recent research results show that extract from Aronia fruit contains 3 210 mg of hesperidin and 80 mg of rutin per its 100 milliliters.

The institute developed the technology of fermenting remain of processed fruit by a microbiological method, thus raising the extraction rate of hesperidin and rutin, each 19 times and ten times.

The Aronia fruit extraction technique won a gold medal at the 13th National Exhibition of Inventions and New Technologies last year.

According to researcher Kim Sung Je, the effect of Aronia fruit as cardiacs is ten times higher than fruit of Crataegus pinnatifida. Its extract helps remove effete matter, sediment and fat in blood and neutralize poisonous matter. It is efficacious for angina cordis and myocardial infraction in particular.

The Aronia melanocarpa is native to North America. Horticulturists of Germany and Poland presented trees of this species as gifts to President Kim Il Sung and leader Kim Jong Il in the mid-1980s and early 1990s.

The President cultivated the tree personally and took a step to spread it throughout the country.