According to Traditional Chinese Medicine Panax Ginseng promotes Yang energy, improves circulation, increases blood supply, revitalizes and aids recovery from weakness after illness, and stimulates the body. Panax Ginseng is available in four forms:
The form called fresh ginseng is the raw product.
The form called white ginseng (WG) white ginseng is fresh ginseng which has been dried. It is grown for four to six years, and then peeled and dried to reduce the water content to 12% or less. White Ginseng is air dried in the sun and may contain less of the therapeutic constituents. It is thought by some that enzymes contained in the root break down these constituents in the process of drying. Drying in the sun bleaches the root to a yellowish-white color.
The form called red ginseng (RG) is harvested after six years, is not peeled and is steam-cured at standard boiling temperatures of 100 degree celcius, thereby giving them a glossy reddish-brown coloring. Steaming the root is thought to change its biochemical composition and also to prevent the breakdown of the active ingredients. The roots are then dried. RG is more common as herbal medicine than WG, and there is increasing research on the pharmacological activities of RG specific ginsenosides.
The form called sun ginseng (SG) is created from a heat processing method which increases ginsenoside components such as ginsenoside-[Rg.sub.3], -[Rk.sub.1] and -[Rg.sub.5] by steaming white ginseng at a higher temperature than red ginseng. The herb is steamed for three hours at 120 [degrees]C. Research has shown that SG has increased nitric oxide, superoxide, hydroxyl radical and peroxynitrite scavenging activities compared with conventionally processed RG or WG. The increased steaming temperature produces an optimal amount of biological activity due to its ability to amplify specific ginsenosides. Japanese researchers set out to investigate the antioxidant effect of SG on oxidative stress.
Hardy to -10°C.
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