Recently, fermented soybean meal (FSBM), prepared by solidstate
fermentation using Bacillus subtilis, was introduced to the
Asian and US feed markets. The fermentation process produces
FSBM in several forms, including natto in Japan, tempeh in
Indonesia, and chungkukjang in Korea. FSBM is believed to have a
decreased concentration of anti-nutritional factors and an
increased digestibility and bioactivity by hydrolyzing intact protein
into smaller peptides