Standard Specification of Native Tapioca Starch
|
No.
|
Properties
|
Unit
|
Test Method
|
Limit
|
|
1
|
Starch content
|
%
|
AOAC: 945.37
|
≥ 85.0
|
|
2
|
pH
|
AOAC: 943.02
|
5.0 ÷ 7.0
|
|
|
3
|
Fiber content
|
%
|
AOAC: 920.86
|
≤ 0.05
|
|
4
|
Sulphur Dioxide SO2
|
ppm
|
AOAC 962.16
|
≤ 30.0
|
|
5
|
Moisture
|
%
|
AOAC: 925.10
|
≤ 13.0
|
|
6
|
Fineness (140 Mesh)
|
%
|
≥ 99.0
|
|
|
7
|
Viscosity
|
BU
|
≥ 700
|
|
|
8
|
Ash
|
%
|
AOAC: 923.03
|
≤ 0.20
|
|
9
|
Impurities (foreign matters)
|
%
|
AOAC: 941.12
|
≤ 0.10
|
|
10
|
Whiteness
|
%
|
ISI 44
|
≥ 90.0
|
|
11
|
Hg
|
ppm
|
AOAC: 971,21
|
≤ 0.2
|
|
12
|
Pb
|
AOAC: 986,15
|
≤ 0.2
|
|
|
13
|
Cadimi (Cd)
|
AOAC: 986,15
|
≤ 0.1
|
|
|
14
|
Asen (As)
|
AOAC: 986.15
|
≤ 0.1
|
|
|
15
|
Aflatoxin
|
µg
|
AOAC 986.22
|
≤ 0.05
|
|
16
|
Total Plate Count (TPC)
|
CFU/g
|
ISO 4833 (2003)
|
≤ 106
|
|
17
|
Coliforms
|
AOAC 2005 (966.24)
|
≤ 103
|
|
|
18
|
Staphylococcus Aureus
|
AOAC 2000(987.09)
|
≤ 102
|
|
|
19
|
Clostridiuum Perfringens
|
AOAC 2000 (976.30)
|
≤ 102
|
|
|
20
|
Escherichia Coli (E.Coli)
|
AOAC 2005 96.24
|
≤ 102
|
|
|
21
|
Bacillus cereus
|
AOAC 2005 980.31
|
≤ 102
|
|
|
22
|
Total yeast & mold
|
MPN/g
|
TCVN 5166-90
|
≤ 103
|
