DEFINITION

Bacillus subtilis subsp. subtilis Menaquinone-7 Extract is the product obtained by supercritical carbon dioxide (CO₂) extraction of cultures of Bacillus subtilis subsp. subtilis strains that are capable of fermenting soybean protein isolate (soybean peptone) from soybeans to produce natto. The Extract is a brown oil, consisting mainly of fat (>97%), that contains NLT 1.5% and NMT 5.0% of menaquinone-7 (C₄₆H₆₄O₂), and NLT 0.014% and NMT 0.15% of menaquinone-6 (C₄₁H₅₆O₂). It contains no organic solvents.