Table 1.
Item | Corn storage time, yr |
|||
---|---|---|---|---|
2 | 3 | 4 | 5 | |
Moisture, % | 11.42 | 11.50 | 11.10 | 12.40 |
Test weight, g/L | 719.0 | 718.5 | 718.5 | 687.5 |
CP, % | 6.97 | 7.58 | 7.12 | 7.15 |
Amino acid, % | ||||
Asp | 0.46 | 0.48 | 0.47 | 0.43 |
Thr | 0.26 | 0.27 | 0.27 | 0.25 |
Ser | 0.33 | 0.36 | 0.36 | 0.33 |
Glu | 1.47 | 1.54 | 1.51 | 1.44 |
Pro | 0.58 | 0.63 | 0.62 | 0.60 |
Gly | 0.27 | 0.28 | 0.28 | 0.26 |
Ala | 0.52 | 0.54 | 0.52 | 0.51 |
Cys | 0.19 | 0.19 | 0.20 | 0.18 |
Val | 0.43 | 0.42 | 0.42 | 0.40 |
Met | 0.18 | 0.11 | 0.14 | 0.15 |
Ile | 0.23 | 0.24 | 0.24 | 0.23 |
Leu | 0.84 | 0.88 | 0.85 | 0.84 |
Tyr | 0.16 | 0.18 | 0.15 | 0.15 |
Phe | 0.28 | 0.35 | 0.27 | 0.33 |
Lys | 0.22 | 0.37 | 0.23 | 0.34 |
His | 0.23 | 0.31 | 0.24 | 0.27 |
Arg | 0.27 | 0.28 | 0.27 | 0.25 |
Fatty acid, mg/g | ||||
C16:0 | 3.09 | 3.28 | 3.01 | 2.81 |
C16:1 | 0.03 | 0.03 | 0.03 | 0.03 |
C18:0 | 0.34 | 0.38 | 0.33 | 0.30 |
C18:1 | 6.11 | 6.74 | 5.86 | 5.19 |
C18:2 | 11.38 | 12.27 | 10.55 | 9.69 |
C18:3 | 0.28 | 0.31 | 0.26 | 0.22 |
C20:1 | 0.07 | 0.04 | 0.07 | 0.07 |
Catalase activity, mg H2O2/g | 151.1 | 151.6 | 183.8 | 6.8 |
Peroxidase activity, U/g per min | 381.9 | 595.2 | 416.3 | 159.3 |
Acidity of fatty acids, KOH mg/100 g dry matter | 56.2 | 48.8 | 54.5 | 108.1 |
Analysis based on a duplicate.