Table 4 Physical–chemical quality of corn kernels stored under different systems and durations.
Storage | Cracked corn | Normal corn | Whole corn | |||
|---|---|---|---|---|---|---|
Time (months) | Time (months) | Time (months) | ||||
Zero | Six | Zero | Six | Zero | Six | |
Water content (w.b.) (%) | ||||||
Aerated | 10.16 Ba | 12.55 Ab | 9.86 Aa | 12.96 Bb | 9.85 Aa | 12.68 Ab |
Airtight | 10.19 Bb | 12.18 Bb | 9.86 Aa | 12.08 Bb | 9.85 Aa | 11.76 Ab |
Bag | 10.19 Ba | 12.70 Bb | 9.86 Aa | 11.98 Ab | 9.85 Aa | 12.56 Bb |
Non-aerated | 10.19 Ba | 12.97 Ab | 9.86 Aa | 12.72 Ab | 9.85 Aa | 12.83 Ab |
Crude protein (%) | ||||||
Aerated | 9.02 Ab | 7.59 Aa | 9.08 Ab | 8.06 Aa | 10.14 Bb | 8.44 Ba |
Airtight | 9.02 Ab | 8.89 Ba | 9.08 Ab | 8.43 Aa | 10.14 Bb | 8.99 Ba |
Bag | 9.02 Ab | 8.79 Ba | 9.08 Ab | 8.66 Aa | 10.14 Bb | 8.77 Bb |
Non-aerated | 9.02 Ab | 8.68 Aa | 9.08 Ab | 9.10 Ca | 10.14 Bb | 8.89 Ba |
Acid index (NAOH mL) | ||||||
Aerated | 1.94 Ab | 1.85 Ca | 2.76 Cb | 1.50 Aa | 2.24 Bb | 1.58 Ba |
Airtight | 1.94 Ab | 1.65 Ba | 2.76 Cb | 1.83 Ca | 2.24 Bb | 1.57 Aa |
Bag | 1.94 Ab | 1.62 Aa | 2.76 Cb | 1.85 Ca | 2.24 Bb | 1.75 Ba |
Non-aerated | 1.94 Ab | 1.77 Ba | 2.76 Cb | 1.65 Aa | 2.24 Bb | 1.82 Ca |
Ashes (%) | ||||||
Aerated | 1.23 Ab | 0.98 Ba | 1.26 Bb | 1.26 Bb | 1.35 Cb | 1.25 Cb |
Airtight | 1.23 Ab | 0.67 Aa | 1.26 Bb | 0.99 Ba | 1.35 Cb | 0.98 Ba |
Bag | 1.23 Ab | 1.05 Aa | 1.26 Bb | 1.14 Ba | 1.35 Cb | 1.09 Aa |
Non-aerated | 1.23 Cb | 0.86 Aa | 1.26 Bb | 0.84 Aa | 1.35 Cb | 1.03 Ba |
