From: Quality assurance for Chinese herbal formulae: standardization of IBS-20, a 20-herb preparation
Test | Limit (maximum) | Herbal formula |
---|---|---|
Heavy metals: | Â | Â |
Arsenic (As) | 2.0 mg/kgb | 0.30 mg/kg |
Cadmium (Cd) | 0.3 mg/kgb | 0.13 mg/kg |
Mercury (Hg) | 0.2 mg/kgb | Not detectable |
Lead (Pb) | 5.0 mg/kgb | 0.34 mg/kg |
Pesticide residues: | Â | Â |
Aldrin and dieldrin (sum of) | 0.05 mg/kgb | Not detectable |
Chlordane (sum of cis-, trans- and oxychlordane) | 0.05 mg/kgb | Not detectable |
DDT (sum of p,p'-DDT, o,p'-DDT, p,p'-DDE and p,p'-TDE) | 1.0 mg/kgb | Not detectable |
Endrin | 0.05 mg/kgb | Not detectable |
Heptachlor (sum of heptachlor and heptachlor epoxide) | 0.05 mg/kgb | Not detectable |
Hexachlorobenzene | 0.1 mg/kgb | Not detectable |
Hexachlorocyclohexane isomers (α-, β- and δ- hexachlorocyclohexane) | 0.3 mg/kgb | Not detectable |
Lindane (γ-hexachlorocyclohexane) | 0.6 mg/kgb | Not detectable |
Quintozene (sum of quintozene, pentachloroaniline and methyl pentachlorophenyl sulphide) | 1.0 mg/kgb | Not detectable |
Mycotoxins: | Â | Â |
Aflatoxin B1 | 5 μg/kgb | Not detectable |
Sum of aflatoxins B1, B2, G1 and G2 | 10 μg/kgb | Not detectable |
Microbiological: | Â | Â |
Total plate counts | 1000 colony/ga | < 10 colony/g |
Yeast and mould | 100 colony/ga | < 10 colony/g |
Escherichia coli | Absenta | Absent |
Salmonella species | Absent | Absent |