| ≥1 piece |
1. Grading
Edible wheat starch is divided into premium grade, first grade and second grade.
2. Quality Requirements
Sense Requirements
|
Item |
Indexes |
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|
Premium Grade |
First Grade |
Second Grade |
|
|
Colority |
Pure white and glossy |
Pure white |
|
|
Smell |
No peculiar smell |
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|
Taste |
No gritty |
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|
Impurities |
No foreign matters |
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Physicochemical Indexes
| Item |
Indexes |
||
|
Premium Grade |
First Grade |
Second Grade |
|
|
Water Content (%) ≤ |
13.00 |
14.00 |
14.00 |
|
Acidity (ml) ≤ |
20.00 |
25.00 |
35.00 |
|
Ash Content (%) ≤ |
0.25 |
0.30 |
0.35 |
|
Protein (%) ≤ |
0.30 |
0.40 |
0.50 |
|
Spot (psc/cm2) ≤ |
2.00 |
4.00 |
6.00 |
|
Fineness150 (%, m/m) (Passing Rate in 100-mesh Sieve) ≥ |
99.80 |
99.70 |
99.60 |
|
Whiteness 440nm Reflectivity of Blue Light (%)≥ |
97.00 |
96.00 |
95.00 |
|
Viscosity Starch Paste with 6% Concentration (Pa.s) ≥ |
45.00 |
45.00 |
45.00 |
|
Fat (%) ≤ |
0.07 |
0.10 |
0.15 |
Hygienic Indexes
| Item |
Indexes |
||
|
Premium Grade |
Premium Grade |
Premium Grade |
|
|
Sulfur Dioxide(mg/kg) ≤ |
30.00 |
||
|
Arsenic (mg/kg, As) ≤ |
0.50 |
||
|
Lead (mg/kg, Pb) ≤ |
1.00 |
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