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European Pharmacopoeia
9
th
Edition, 2017
Ginger
(Zingiberis rhizoma)
Content:
Minimum 15 mL/kg of essential oil (anhydrous drug).
Identification:
Macroscopic, microscopic, TLC (against citral and resorcinol)
Tests:
Water (NMT 100 mL/kg), Total Ash (NMT 6.0%)
Assay:
Essential oil (NLT 15 mL/kg)
Use 20.0 g of the freshly, coarsely powdered herbal drug, a 1000 mL round-bottomed flask,
10 drops of
liquid paraffin R
or other antifoam, 500 mL of
water R
as distillation liquid and 0.5
mL of
xylene R
in the graduated tube. Distil at a rate of 2-3 mL/min for 4 h.
Ginger
(
Zingiberis Rhizoma
)
Japanese Pharmacopoeia
16
th
Edition, 2011
Description:
Macroscopy, microscopy, organoleptic
Identification:
TLC against
[6]-gingerol
Purity:
Heavy metals (NMT 10 ppm), Arsenic (NMT 5 ppm), Total ash (NMT 8.0%)
Powdered Ginger
(
Zingiberis Rhizoma Pulveratum
)
Description:
Macroscopy, microscopy, organoleptic
Identification:
TLC against
[6]- gingerol
Purity:
Heavy metals (NMT 10 ppm), Arsenic (NMT 5 ppm), Total ash (NMT 8.0%)
Processed Ginger
(
Zingiberis Processum Rhizoma
)
Description:
Macroscopy, microscopy, organoleptic
Identification:
TLC against
[6]- shogaol
Purity:
Arsenic (NMT 5 ppm), LOD (NMT 15.0%), Total ash (NMT 6.5%), Acid-
insoluble ash (NMT 1.5%), Ethanol extractive (NLT 8.0%)