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Oragnoleptic properties
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Specification
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Appearance
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Bright yellow- brown powder
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Odour
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Characteristic odor
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Solubility
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Slim solubility in water and good soluble in alcohol
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Physical Characteristic
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Loss on drying (at 105 C)
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Sample: 1.0 g of finely powdered Ginkgo Analysis: Dry the Sample at 105° for 2 h.Acceptance criteria Max 5%
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Acid value
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NMT 2.00mgKOH/gm
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Water content
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0.20% Max
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Ginkgolic acid
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Less than 5 ppm
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Microbiological Analysis
Total aerobic count
Total Plate Count
Yeast & Mould
E. coli & Salmonella
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NMT 100000 cfu / gm
NMT 1000 cfu / gm
Absent
Positive
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Chromatographic Analysis:%
Identification by TLC
Bilobalide
Ginkgolides
Flavonoid glycosides
Ginkgolic acid
Bulk density (informative)
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2.6 to 3.2
2.8 to 3.4
22. to 27.0
NMT 5ppm
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