ABSTRACT

Selenium (Se) is an essential micronutrient for humans and animals. Soybean has played an integral part in Asian foods for many centuries, it has been integrated into Western diets. Compared to inorganic Se, organic Se is safer and more effective for absorption by the human body. The Se concentration in soybean sprouts decreased significantly with the prolongation of germination time, while it remained stable without significant change in seed coat. The Se concentration of soya-bean milk and bean dregs decreased significantly with the increase of water-soybean ratio. The samples were divided into soybean sprouts and seed coats, and the Se concentration was determined. The Se-rich soybean was soaked at room temperature for 10 h according to the water-soybean ratio of 4:1. The Se distribution ratio in soya-bean milk increased rapidly with the increase of the water-soybean ratio in the range of 6:1–10:1; however, the opposite trend was observed in bean dregs.