Lueyang Huangjing is unique in the market, with a large block, a fat, a yellow color, a sweet and delicious taste, and a unique shape. According to the test, the content of the polysaccharide active ingredient of Lueyanghuangjing is as high as 14.5%, which is twice the 7.0% of the Chinese Pharmacopoeia standard and up to 85% of the extract. It is 1.9 times of the Pharmacopoeia standard 45%.

Lueyang County, Hanzhong City is located in the south of the Qinling Mountains. The county is densely forested and rich in wild medicinal materials. There are more than 400 kinds of animal and plant medicinal materials commonly found in the county. It is a well-known Chinese medicine planting county. Lueyang, located in the middle of the Qinling Mountains, in the Qinba Mountains. The geographic location is the intersection of the climate and plants of the South West. Therefore, "Orange is Huainan, it is orange, and it is born in Huaibei." Due to specific natural conditions, ecological environment and human factors, the authentic medicinal materials constitute the advantages of Chinese herbal medicine resources, high quality, high pharmaceutical value and double production. It is a natural treasure house suitable for the growth of medicinal materials such as Huangjing, Poria, Gastrodia elata, Eucommia, Ginkgo biloba and Bupleurum. There was a poet of the Tang Dynasty, Zhang Ji, who sent the "King of the King", "Aijun Zige Peak is good, and the new book is made up of medicine stoves. See the acclaimed poems of wanting to move closer to each other, with more fields and more varieties." After the founding of the Western Han Dynasty, the name of Zhang Liang, after the success of the name, the valley in the upper reaches of the Heihe River in the south of the Qinling Mountains, Zigang Peak, the end of the day to eat Huangjing, mountain fruit health extension, so that the Chinese herbal medicine here to bathe the mountain aura, the quality of the famous Chinese and foreign, become The best medicinal material base researched and developed by Chinese and foreign experts.

Technical requirements for the quality of Lueyang Huangjing 1. Polygonatum sibiricum Red. Second, the site conditions soil texture is sandy loam and humus soil. The thickness of the tillage layer in the field is ≥30 cm; the upper layer of the forest is light-transmitting, and the lower layer is shaded, with an altitude of 600 to 1600 m. Third, cultivation management 1. Planting methods: wild, semi-wild cultivation and artificial cultivation. 2. Cultivation techniques: 2.1 Propagation method: Roots are propagated, and the rhizome used is two sections (one or two years old). 2.2 Management techniques: 2.2.1 Wild: Artificial tending. 2.2.2 Lower wild cultivation in the forest: remove weeds and maintain a certain degree of light transmission. 2.2.3 Artificial cultivation: The intercropping planting mode is adopted to timely weed the grass. At the end of November, the straw is returned to the field and the organic fertilizer is added at 40 kg/mu. 3. Environmental safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations. 4. Harvesting and planting after 4-5 years, the harvesting time is from mid-October to mid-November. 5. Processing 1. Classification: divided into three levels according to the weight. 2. Cleaning: Each batch of medicinal materials is washed twice, and the cleaning time is not more than 10 minutes. 3. Steaming and killing: 2-10 minutes according to different grades. 4. Drying: It is naturally dry. If it is rainy, it can be dried. When the dryness reaches 70%, it will be sweating, and then dried until the water content meets the specified requirements. 5. Packing: After the product has passed the inspection, it will be packaged according to the specified requirements. Sixth, quality characteristics 1. Sensory characteristics: This product is a knot-shaped curved column shape, single-section chicken head shape, fleshy oily, color yellow-brown translucent, transparent section, less sweet taste. 2. Physical and chemical indicators: Polygonatum polysaccharide content ≥ 7.6%, extract ≥ 50%, total ash ≤ 4%, moisture ≤ 18%. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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Producers within the scope of the production of Lueyanghuangjing may submit an application to the Lueyang County Market Supervision Administration for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Shaanxi Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The detection mechanism of Lueyang Huangjing is selected by the Shaanxi Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.