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Fig. 6 | AMB Express

Fig. 6

From: Production of acetoin and its derivative tetramethylpyrazine from okara hydrolysate with Bacillus subtilis

Fig. 6

a Production of acetoin using okara enzymatic hydrolysate as carbon source in conjunction with different amounts of corn dry powder (CDP). Control: okara enzymatic hydrolysate as the carbon source, 15 g/L corn dry power. b Comparison of acetoin fermentation between okara hydrolysate (29 g/L reducing sugar) supplementation of 3 g/L urea and containing 3 g/L urea simulating okara hydrolysate sugar composition (29 g/L reducing sugar), supplemented with (2.5, 7.5, 15 g/L) corn dry powder and (2.5, 7.5, 15 g/L) yeast extract, respectively. Control: okara enzymatic hydrolysate as the carbon source, 3 g/L urea (*Significance code: p < 0.05, **Significance code: p < 0.01)

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