Korean ginseng  

Product Description

History

Ginseng is perhaps the most widely recognized plant used in traditional medicine and now plays a major role in the herbal health care market. For more than 2,000 years, various forms have been used medicinally. The name Panax derives from the Greek word for “all healing,” and its properties have been so touted. Ginseng root's man-shaped figure (shen-seng means “man-root”) led proponents of the doctrine of signatures, an ancient European herbalist’s philosophy, to believe that the root could strengthen any part of the body. Through the ages, the root has been used in the treatment of asthenia, atherosclerosis, blood and bleeding disorders, and colitis, as well as to relieve the effects of aging, cancer, and senility.

Evidence of the root's general strengthening effect has been examined for its ability to raise mental and physical capacity, as well as its protectant effect against diabetes, neurosis, radiation sickness, and some cancers. Today, its popularity is widely due to the adaptogenic or stress-protective effect of the saponins.

Chemistry

Major compounds in ginseng include triterpene saponins, polyacetylenes, sequiterpenes, polysaccharides, peptidoglycans, nitrogen-containing compounds, and other compounds, including fatty acids, carbohydrates, and phenolic compounds. The triterpene saponins are considered the most active compounds, and some estimates report up to 150 different ginsenosides, grouped into either dammarane or oleanane groups. Many analytical methods have been described and standards published. The European Pharmacopoeia requires a minimum of 0.4% combined Rg1 and Rb1 ginsenosides, while the Chinese Pharmacopoeia requires ginseng radix (dry root) to have not less than 0.3% Rg1 and Re combined ginsenosides and not less than 0.2% Rb1.

Most traditional ginseng herbal preparations contain ginsenosides. However, a commercially available product, known as CVT-E002, a patented aqueous extract of approximately 80% to 90% poly-furanosyl-pyranosyl-saccharides from the roots of North American ginseng (P. quinquefolius ), does not contain ginsenosides. Adulterants are commonly found in ginseng preparations due to the high cost of authentic ginseng roots, and the presence of natural methylxanthines may also contribute to some reported physiological effects.

Variances in cultivation and processing methods, as well as the individual genetics of each plant source, result in varying chemical compositions among commercial products. This may contribute to the lack of consensus among studies on the pharmacology and efficacy of ginseng and should be considered when conducting and interpreting research. A second factor that may have produced erratic results is the discovery that ginsenosides are metabolized extensively by the human gut microflora and that some of the metabolites are pharmacologically active. Colonic bacteria can remove the 3 sugars from ginsenoside Rb1 in stepwise fashion, and the deglycosylated compounds are then esterified in the liver with the fatty acids stearic, palmitic, and oleic acid. These esters persist in the liver for as long as 24 hours.Thus, differences in an individual's gut flora may lead to differing pharmacological responses to ginseng preparations.

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