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Fig. 3 | Annals of Microbiology

Fig. 3

From: Coproduction of menaquinone-7 and nattokinase by Bacillus subtilis using soybean curd residue as a renewable substrate combined with a dissolved oxygen control strategy

Fig. 3

MK-7 concentration and NK activity in different cultures media. a Different soybean curd residue contents ranging from 10 to 180 g/L. The effects of different b complementary carbon sources, c complementary nitrogen sources, and d inorganic salts. Fermentation was carried out at 37 °C and 200 rpm in shake flasks. Symbols:, MK-7 concentration;, NK activity

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