American Ginseng Standardized Extract
American Ginseng Standardized Extract
Ginseng, American ginseng
Canada, eastern US, Wisconsin, China
PART OF PLANT USED
Panax quinquefolium is a deciduous perennial shrub whose fleshy root requires 4 years of cultivation to reach maturity. Traditionally the wild root was consumed by American Indians as a general tonic, as a natural restorative for weak and wounded, and to help the mind. American ginseng is now used as a natural preventive and restorative remedy and valued for its adaptogenic properties. American ginseng (Panax quinquefolium) is more sedative and relaxing and increases "yin" energy while Korean ginseng is more stimulating and increases the "yang" energy. American ginseng is suitable for females and young people as well as males and older people.
CNS depressant, anticon-vulsant, analgesic, tranquilizing
Anti-fatigue (insomnia, nervousness, poor appetite)
Restorative for active or nervous, agitated disposition
Increase vitality in conditions of weakness, prolonged stress, poor immunity, or chronic disease
Anti-inflammatory and anti-pyretic
Increase gastro-intestinal motility
Increase synthesis of cholesterol in liver
Immune system stimulant
Regulate adrenal gland, inhibit exhaustion of gland
Regulate blood sugar and lipid levels
American ginseng has been used for stress and fatigue characterized by insomnia, poor appetite, nervousness, and restlessness. The root has been used for conditions of weakness, convalescence, low resistance, poor immunity or debility due to chronic disease. Scientific support is now emerging for its use in the regulation of various metabolic disturbances including blood sugar and lipid levels.
Glycosides (Ginsenosides), saponins, phytosterol
The main active ingredients of ginseng are the more than 20 saponin triterpenoid glycosides called ginsenosides whose names relate to their chromatographic position (Ra, Rb, etc.). American ginseng is rich in the Rb1 group of ginsenosides which have more sedative and metabolic effects on the central nervous system, compared to the Rg1 group of ginsenosides which are more arousing and stimulating. Rb1 Ginsenosides have CNS-depressing activity, have weak anti-inflammatory action, and increase digestive tract peristalsis. Laboratory animals given Rb1 ginsenosides have improved stamina and increased learning abilities. Other studies have shown Rb1 ginsenosides also have anti-fatigue, anti-convulsant, antipyretic, antipsychotic, analgesic, and ulcer protective effects.
TOXICITY, CAUTIONS & CONTRA-INDICATIONS
No reported toxicity
DIRECTIONS FOR USE
250-500 mg. extract (15%)/day
1-2 gm/day dried root
4 year old roots are harvested and dried.
15% ginsenosides, mainly Rb1
ANALYSIS STANDARDIZED EXTRACT
Type Standardization Standardized extract 15.11 (>=14.0) Ginsenoside Rg1- 1.57% Ginsenoside Rb1 - 3.05% ratio Rg1/Rb1 51-47% Character brown-yellow amorphous powder Loss on drying: 3.85 (<=7.0) pH 5.35 (4.0 - 6.0) Ash 6.29 (<=9.0) Heavy Metals <50.0 (<=50.0) ppm Total residual organic solvents 0.1 (<=2.0) Total Aerobic Microbial count <1000.0 (<=1000.0) cfu/g fungi <100.0 (<=100.0) cfu/g staph aureus, salmonella absent E. coli absent
Baldwin, CS et al. (1986) What pharmacists should know about Ginseng. Pharm. J. Nov 8th:582.
Blumenthal, M (Ed.): The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. American Botanical Council. Austin, TX. 1998.
Brekhman, I.I. and Dardymov, I.V. (1969) New substances of plant origin which increase nonspecific resistance. Ann Rev Pharm. 9:419.
Hia, et al. (1979) Stimulation of pituitary adrenocortical system by ginseng saponins. Endocrinol. Japonica. 26(6):661.
Mowrey, D. (1990) Guaranteed Potency Herbs. A Compilation of writings on the subject.
Oshima, Y et al. (1987) J. Nat. Prod. 50:188.
Weiner, M. (1990) Weiner's Herbal. Mill Valley: Quantum Books.
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