American ginseng is also called American ginseng and American ginseng. It was originally a rare Chinese herbal medicine grown in the United States and Canada. China has been used in the field of traditional Chinese medicine for more than 300 years, and all its sources are imported.
In the middle and late 1970s, China carried out experimental cultivation and successfully introduced it in the early 1980s. Wendeng City is one of the earliest areas where experimental planting was successful. After more than 20 years of promotion, China has become the third largest American ginseng producer after Canada and the United States.
Due to historical reasons, domestic consumption recognizes imported American ginseng very much, but there is misunderstanding about the quality of domestic ginseng. Wendeng American ginseng has a thick and short appearance; The content of total saponins reaches 6.5%, and in some cases it can reach 8.8%, which is 1.5 and 1 percentage point higher than the first-class national standard and American ginseng, respectively. Ginsenoside Rb 1 reached 1.4%, which was 0.2 percentage points higher than the first-class product in the national standard, and the quality was not worse than that of imported products. This is because: the natural and geographical conditions of the first Wendeng area are basically the same as the origin. Wendeng City is located in the east of Shandong Peninsula, with four distinct seasons and a continental monsoon climate in warm temperate zone. Annual average temperature 1 1. 1℃, frost-free period 195 days, annual average precipitation of 823.9 mm, and annual average sunshine of 2522 hours. In particular, compared with the northeast producing area, it can prolong the growth period by nearly two months, which is very beneficial to the increase and accumulation of effective components. Secondly, popularize standardized production technology, popularize standard technical operating procedures through agricultural extension departments, and produce ginseng according to requirements to ensure the quality and pollution-free of American ginseng.
At present, the planting area of American ginseng in Wendeng City is more than 6.5438+0 million mu, and more and more people in China can use Wendeng American ginseng to strengthen their health and prevent and treat diseases.
Wendeng American ginseng
territorial scope
Wendeng City is located in the east of Shandong Peninsula, bordering Kunyu Mountain in the west, Muping District and Rushan City in Yantai City, Huancui District in Weihai City in the north, Rongcheng City in the east and the Yellow Sea in the south. Wendeng American ginseng geographical indication applied for registration and protection in Dianzitou Village, Beijieshi Town, Wendeng City. Shi Cun, Dashuipo Town in the east; South to Qiandao Village, Zeku Town; West to Ge Jia Town West Tanjiakou Village, covering 687 administrative villages in Wendeng City 15 Town (Office) Development Zone. Geographical coordinates are: east longitude12143' ~19', north latitude 36 52' ~ 3716', and the protected planting area is 2000 hectares.
Product quality characteristics
Wendeng Panax quinquefolium is a perennial herb of Panax in Araliaceae. The whole plant is hairless. Its rhizome is shorter than ginseng, its root is fleshy, spindle-shaped, cylindrical or conical, with few branches, 3 ~ 12 cm long and 0.8 ~ 2 cm in diameter. The surface is light yellow-brown or yellow-white, with transverse ring lines and linear lenticels, thin and shallow longitudinal wrinkles and fibrous root marks. There are one or several lateral roots in the middle and lower part of the main root; Some have rhizomes (reed heads) at the top, and the links are obvious. Stem scar (reed bowl) is round or semi-circular, with adventitious root scab or broken. Heavy, solid, not easy to break, flat section, light yellow-white, slightly powdery, yellow-brown dotted resin grooves can be seen on the epidermis, and the cambium is brown in ring pattern, and some parts are slightly radial. The gas is slightly specific, and the taste is slightly bitter and sweet. The stem is cylindrical, about 25 cm long, with longitudinal stripes or slightly angular. Palmately compound leaves, usually 3-4, whorled on the stem; Leaflets are membranous, broadly ovoid to obovate, with acute apex, deformed base and coarsely serrated edges. The total pedicel is extracted from the center of the petiole at the end of the stem, which is slightly longer or almost as long as the petiole. Umbellies, many flowers, equal green, bell-shaped; Petals 5, green and white. Berries, oblate, paired, bright red when ripe. The flowering period is from June to July, and the fruiting period is from July to September. Sensory requirements: GB/T 1756 438+0-6438+0998. 2. Safety requirements: The sanitary index of Wendeng Panax quinquefolium is implemented according to the standard of green food NY/T 1043-2006.