Research Article
Effects of Nutrients in Substrates of Different Grains on Aflatoxin B1 Production by Aspergillus flavus
Table 2
Starch, trace element, soluble sugar, and amino acid contents of different substrates.
| Nutrients | Defatted soybean | Defatted peanut | Defatted wheat | Defatted corn | Defatted corn endosperm | Defatted corn germ |
| Starch content (%) | | | | | | | Starch | 5.26 ± 0.94 | 7.01 ± 0.71 | 67.22 ± 2.87 | 72.21 ± 1.97 | 82.19 ± 1.11 | 28.12 ± 0.76 | Trace elements contents (mg/kg) | | | | | | | Copper | 25.33 ± 9.41 | 34.63 ± 2.44 | 12.12 ± 1.90 | 6.89 ± 0.35 | 6.79 ± 1.70 | 19.86 ± 3.21 | Iron | 93.47 ± 0.22 | 64.18 ± 7.68 | 83.97 ± 8.51 | 21.95 ± 4.15 | 6.23 ± 3.36 | 145.05 ± 11.31 | Zinc | 51.90 ± 4.07 | 84.40 ± 10.88 | 39.14 ± 3.23 | 18.96 ± 1.52 | 12.47 ± 0.91 | 107.47 ± 1.94 | Manganese | 36.19 ± 0.65 | 59.86 ± 1.92 | 60.30 ± 0.15 | 5.28 ± 0.18 | 2.13 ± 0.22 | 30.54 ± 0.27 | Soluble sugar concentrations (mg/g) | | | | | | | Fructose | 3.89 ± 1.65 | 11.12 ± 2.06 | 1.94 ± 0.06 | 7.72 ± 0.18 | 1.88 ± 0.24 | 9.67 ± 2.65 | Glucose | 1.61 ± 0.52 | 4.92 ± 1.12 | 4.01 ± 0.13 | 4.95 ± 0.12 | 7.21 ± 0.07 | 13.75 ± 4.27 | Sucrose | 31.17 ± 5.05 | 32.5 ± 0.46 | 2.24 ± 0.12 | 2.15 ± 0.33 | 5.07 ± 0.1 | 42.36 ± 9.19 | Maltose | 0.63 ± 0.14 | 0.54 ± 0.07 | 4.10 ± 0.35 | 4.05 ± 0.35 | 7.96 ± 0.60 | 1.66 ± 0.28 | Raffinose | 3.32 ± 0.41 | 2.08 ± 0.27 | 3.00 ± 0.05 | 1.11 ± 0.17 | 1.16 ± 0.03 | 10.71 ± 2.62 | Stachyose | 34.71 ± 7.39 | 6.78 ± 0.98 | 0.36 ± 0.06 | ND | ND | 0.72 ± 0.10 | Amino acid contents (%) | | | | | | | Aspartic acid | 6.3 ± 0.38 | 7.70 ± 0.23 | 0.74 ± 0.04 | 0.54 ± 0.01 | 0.51 ± 0.15 | 1.81 ± 0.05 | Glutamic acid | 10.56 ± 0.57 | 13.89 ± 0.39 | 4.56 ± 0.24 | 1.72 ± 0.01 | 1.93 ± 0.20 | 3.33 ± 0.05 | Glycine | 2.46 ± 0.10 | 3.35 ± 0.15 | 0.55 ± 0.03 | 0.34 ± 0.00 | 0.30 ± 0.02 | 1.16 ± 0.02 | Arginine | 3.81 ± 0.18 | 6.95 ± 0.18 | 0.65 ± 0.04 | 0.43 ± 0.00 | 0.37 ± 0.03 | 1.73 ± 0.04 | Alanine | 2.58 ± 0.11 | 2.97 ± 0.06 | 0.51 ± 0.03 | 0.61 ± 0.01 | 0.66 ± 0.01 | 1.37 ± 0.01 | Protein level | 45.11 ± 2.53 | 55.45 ± 1.82 | 12.25 ± 0.37 | 8.36 ± 0.09 | 8.60 ± 1.20 | 19.47 ± 0.42 |
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Means within rows followed by the same letter are not significantly different at according to Duncan’s multiple range test ().
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