WHO monographs on selected medicinal plants - travolekar.ru

Fructus Tribuli
Purity tests
Microbiological
Tests for specific microorganisms and microbial contamination limits are
as described in the <strong>WHO</strong> guidelines for assessing quality of herbal medicines
with reference to contaminants and residues (11).
Foreign organic matter
Not more than 4.0% fruit stalks and not more than 1% other foreign matter (2, 3).
Total ash
Not more than 12% (1).
Acid-insoluble ash
Not more than 1.5% (2).
Water-soluble extractive
Not less than 10% (4).
Alcohol-soluble extractive
Not less than 8.5% (2).
Water
Not more than 9% (1).
Loss on drying
Not less than 11% (2).
Pesticide residues
The recommended maximum limit of aldrin and dieldrin is not more than
0.05 mg/kg (12). For other pesticides, see the European pharmacopoeia (12)
and the <strong>WHO</strong> guidelines for assessing quality of herbal medicines with
reference to contaminants and residues (11) and pesticide residues (13).
Heavy metals
For maximum limits and analysis of heavy metals, consult the <strong>WHO</strong>
guidelines for assessing quality of herbal medicines with reference to contaminants
and residues (11).
Radioactive residues
Where applicable, consult the <strong>WHO</strong> guidelines for assessing quality of
herbal medicines with reference to contaminants and residues (11).
Chemical assays
To be established in accordance with national requirements.
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