Edible corn starch: GB/T8885-2008
Organoleptic requirements
| Item |
Superior Grade |
Grade I |
Grade II |
| Appearance |
White powder or with light yellow shadow, lustrous |
| Odor |
With a special inherent odor of corn starch, no peculiar smell |
Physiochemical indexes
| Item |
Index |
| Superior Grade |
Grade I |
Grade II |
| Moisture, % ≤ |
14.00 |
14.00 |
14.00 |
| Acidity (dry basis) /. T ≤ |
1.50 |
1.80 |
2.00 |
| Ash (dry basis) /% ≤ |
0.10 |
0.15 |
0.18 |
| Protein (dry basis) /% ≤ |
0.35 |
0.45 |
0.60 |
| Spot spots/cm2 ≤ |
0.4 |
0.7 |
1.0 |
| Fineness150μm (100 mesh) pass rate, % ≥ |
99.5 |
99.0 |
98.5 |
| Fattiness (dry basis) /% ≤ |
0.10 |
0.15 |
0.20 |
| Whiteness |
440NM Blue ray reflectivity ％ ≥ |
Yellow maize |
88.0 |
87.0 |
85.0 |
Hygienic requirements
| Item |
Index |
| Superior Grade |
Grade I |
Grade II |
Sulfur dioxide, mg/kg ≤
|
30.00 |
| Arsenic, mg/kg, counted by As ≤ |
0.50 |
| Lead, mg/kg, counted by Pb ≤ |
1.00 |
| Coliforms (MPN/100g)≤ |
70 |
| Mildew (CFU/g) ≤ |
100 |
Industrial grade corn starch: GB12309-1990
Organoleptic requirements:
| Item |
Superior Grade |
Grade I |
Grade II |
| Appearance |
White powder or with light yellow shadow, lustrous |
| Odor |
With a special inherent odor of corn starch, no peculiar smell |
Physiochemical requirements
| Item |
Superior Grade |
Grade I |
Grade II |
| Moisture, %(m/m) |
≤14.0 |
| Fineness, %(m/m) |
≥99.8 |
≥99.5 |
≥99.0 |
| Spot, spots /cm2 |
≤0.4 |
≤1.2 |
≤2.0 |
| Acidity (T) |
≤12.0 |
≤18.0 |
≤25.0 |
| Ash (dry basis), % (m/m) |
≤0.10 |
≤0.15 |
≤0.20 |
| Protein (dry basis) %(m/m) |
≤0.40 |
≤0.50 |
≤0.80 |
| Fattiness (dry basis) % (m/m) |
≤0.10 |
≤0.15 |
≤0.25 |
| Sulfur dioxide, % (m/m) |
≤0.004 |
---- |
---- |
| Ferric salt (Fe) , %(m/m) |
≤0.002 |
---- |
---- |
