Lingbao Eucommia
Lingbao Eucommia is produced in Lingbao City, Sanmenxia City, Henan Province. China is the only origin of existing Eucommia resources, and Eucommia accounts for more than 99.9% of the world's resources. According to Li Shizhen's "Compendium of Materia Medica," quoted by Tao Hongjing of the 6th century AD, "Doctors Don't Record," describes: "The growth of Eucommia in the valley and the Shangdang Hanzhong...." Tao Hongjing's Note: "Shangyu in Yuzhou, the highest number of people, and the non-Hueiji Shangyu County. In this case, it is better to use a flat and flat structure, such as Magnolia, and it is better to use as much white silk as possible. "According to the research, there is a difference between Nanxun and Beibei, and Beiqin is located in the Xiaoqinling and Fuzhou of Sanmenxia, ​​Henan Province. Niu Shan and Xiong Ershan area, in Yuzhou (now Henan Province) Lingbao, Lushi and other places.
protected range
The scope of protection of Lingbao Eucommia's geographical indication products shall be based on the geographical scope proposed by the “Letter to Define Lingbao Duzhong Geographical Indications Product Protection†(Ling Zheng Letter [2004] No.67) of the People’s Government of Lingbao City, Henan Province, which shall be Henan Province. The city of Lingbao currently governs the administrative region.
Quality and technical requirements
(a) Soil conditions.
The soil is deep and fertile.
(b) Cultivation and management.
1. Breeding of seedlings: Grafting the scion from the superior cultivars to cultivate grafted seedlings.
2. Seedling planting: The spring soil was thawed and planted. The plant spacing was 4m×5m.
3. Fertilization: The amount of organic fertilizer applied per plant age tree is applied from 6 kg to 8 kg of basal fertilizer.
4. Integral pruning: Pull branches in summer, remove drooping branches, and cultivate good plant types with adequate ventilation, light transmission, and branches.
(c) picking and processing.
1. Picking time: From May to June each year, the “ring peeling and regeneration technology†is adopted for stripping.
2. Processing procedure: stripping-sweating-sun drying and flattening-stripped skin-grade packaging.
(d) quality characteristics.
1. Sensory features: skin brown gray, a shallow vertical crack. To the net skin, meat (endothelium) thick, thickness ≥ 0.43cm, width ≥ 16.5cm, length 82.5cm, cross-section more than silk, dark purple.
2. Physical and chemical indicators: total flavonoids ≥ 0.4%, chlorogenic acid ≥ 0.15%, genipinic acid ≥ 0.37%, Peach Leaf Coral 甙 ≥ 1.14%, moisture ≤ 12%.
Special signs use
Producers within the scope of protection of Lingbao Du Zhong geographical indication products may apply to the Lingbao Quality and Technical Supervision Bureau for the use of “Special Marks for Geographical Indication Productsâ€, which shall be approved by the AQSIQ.
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