Panzhihua truffles protect products for geographical indications. The scope of production is the administrative area under the jurisdiction of Panzhihua City, Sichuan Province. Panzhihua truffle is a scarce biological resource, rich in more than 50 kinds of physiological active ingredients such as amino acids, vitamins and male ketones, and has a unique fragrance. It is known as “black diamond in the forest” and is a rare and exotic food. High economic value. Panzhihua is the largest wild truffle production area in China. In 2008, it was awarded the title of “Hometown of Chinese Truffles”.

The block, also known as truffle, has a unique aroma, taste and nutritional value, and human consumption of truffles has a history of thousands of years. It has the functions of lowering serum low density lipoprotein, lowering cholesterol, raising high density lipoprotein, preventing atherosclerosis, anti-tumor, anti-cancer activity, inhibiting cancer cells, stimulating brain cell viability, enhancing immunity, anti-aging, benefiting stomach, Aphrodisiac, kidney, Qingshen, hemostasis, healing and other miraculous effects. Truffle has been in the world for thousands of years. It is known as "black diamond" in Europe and America. It is the best of wild bacteria. It is known as caviar and foie gras in the world's three major edible treasures. It has a very high nutritional and health value and is a superior treasure for all ages. Nutritional ingredients Truffles have a variety of effects, rich in 17 kinds of amino acids, 8 kinds of vitamins, appropriate amount of protein, and more than 50 kinds of physiological active ingredients such as male ketone, sterol, sphingolipid, fatty acid, amino acid and trace elements. It also contains 8 kinds of amino acids, zinc, manganese, iron, calcium, phosphorus, selenium and other essential nutrients that the human body cannot synthesize. It has the medicinal value of strengthening immunity, anti-aging, benefiting stomach, clearing the nerves, stopping bleeding, healing and so on. Anti-cancer activity, has a certain inhibitory effect on cancer cells, can stimulate brain cell viability. Its taste is delicious and delicious. It is one of the favorite fungi in Europe and America. It is mainly used as a diet, edible or extracting ingredients for cosmetics. Edible effect truffle brewing health wine has unique flavor, good taste, green health and pharmacological effects, with aphrodisiac, kidney, lower serum low-density lipoprotein, cholesterol, high-density lipoprotein, prevention of atherosclerosis Significant efficacy against tumors. Drinking from time to time, it is beneficial to improve the internal organs of the human body. It has the medicinal value of strengthening immunity, anti-aging, benefiting stomach, clearing the nerves, stopping bleeding, healing and so on. It is favored by domestic and foreign customers, the market needs a large amount of money, and the return on investment is high. . Market Quotes At present, the price of fresh truffles in the European market is 500~1000 US dollars/kg, and the price of natural truffles exported to Europe and America is 800~1000 yuan/kg. The domestic commercial truffle natural distribution area is within a range of 200 km around Panzhihua. At present, the market price of black truffle in Japan, Europe and America is between 500-1000 US dollars per kilogram, the domestic market price of black truffle is between 500-1000 yuan per kilogram, and the price of the superior Italian white truffle can reach More than 5,000 euros per kilogram is one of the most expensive strains. After being protected, the Panzhihua Municipal Government listed the truffle industry as a key forestry industry development and incorporated it into the “Twelfth Five-Year Plan” social and economic development plan of the city. The city has formed more than 10 trough cultivation, production, processing and management. Enterprises, product systems involve fresh truffles, dried truffles, truffle wine, truffle tea, truffle oil, truffle paste, block noodles and so on. At the same time, Panzhihua City carried out a series of related researches on the cultivation of mycorrhizal seedlings, the demonstration of protective development of wild truffles, the cultivation of mycelium, the analysis of components, and the processing technology, and achieved preliminary results. China's first wild block plant protection development demonstration base. The collection and sales market of lumps have also been subject to relevant restrictions and regulations, promoting the transformation of the truffle industry in Panzhihua City from resource advantages to economic advantages, forming industrialized management and pillar industries, and enhancing the brand effect and international competitiveness of Panzhihua truffles. Product awards "Panzhihua truffle" is famous both at home and abroad. Due to his special growth environment and unique nutritional value, it is regarded as a scarce treasure in the world. In 2008, Panzhihua City obtained the "China Truffle Township" certification. At the "14th International Western Exposition", Panzhihua truffles were highly commended by the community, which has laid a solid foundation for the protection and protection of Panzhihua's "China's Block Township" city card for scientific and orderly development of the sustainable development of the truffle industry. The foundation has injected new vitality.

Technical requirements for quality of Panzhihua truffles 1. Sources of Indian truffles, summer truffles, and truffles. Second, the site conditions The altitude range of 1100 meters to 2800 meters, the annual average temperature of 16 ° C to 20.3 ° C, dry season, rainy season. The soil type is mainly composed of sandstone, basalt and limestone, and the soil thickness is ≥50 cm and the pH is 6.0 to 8.0. Irrigation water is available water that is not polluted by reservoirs, streams or water sources. Third, cultivation techniques 1. Strain species: choose fresh, large individual, no mildew, with obvious marble pattern, more than 90% of ascospores are tan-colored ascospores formulated into strains. 2. Mycorrhizal seedling cultivation: Incubate the sterile seedlings of the host plant for 3 to 6 months (chestnut, Yunnan pine, etc.). After the roots and rhizomes of the seedlings meet the requirements, inoculate, and inoculate in the greenhouse for 6 to 18 months after inoculation. . The seedlings are tested before exiting, and the fungal infection rate is ≥90%. 3. Transplanting: Planting in the rainy season, planting density millet (planting density 5m*6m), scorpion (planting density 5m*6m), Yunnan pine (planting density 3m*3m), Huashan pine (planting density 3m*3m). 4. Young forest management: The management of truffle mycorrhizal young forests should pay attention to loosening and weeding, maintaining irrigation and monitoring young forest pests and diseases. 4. The harvesting period is from October to February of the next year. Use truffle dogs (tuber dogs generally choose a dog breed with good endurance and gentleness and easy training). After determining the position of the truffles, use the gums from the top. The soil is turned down to the truffles. V. Processing 1. Fresh products: cleaning → quick freezing → packaging. The fresh truffles are washed with clean water, frozen, and then packaged. 2. Dry product: cleaning → slicing → drying → packaging. Fresh truffles are washed with water, slurried, sliced, and dried to a moisture content of ≤11%. The dried truffles have a complete shape and retain a certain amount of bacteria. Sixth, quality characteristics 1. Sensory characteristics: (1) Fresh products: strange shape, diameter 3cm to 8cm, ascospore fruit is irregular spherical, elliptical, surface has obvious mulberry-like abrupt, with obvious marble texture, and With a special rich aroma of truffles. (2) Dry film: brown, the cut surface is fine, shiny, with obvious marble texture. 2. Physical and chemical indicators: (1) Fresh products: total amino acid ≥ 4%, crude protein ≥ 7%. (2) Dry tablets: total amino acid ≥ 15%, crude protein ≥ 23%. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

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Producers within the scope of the Panzhihua truffle can submit an application to the Quality and Technical Supervision Bureau of Panzhihua City, Sichuan Province for the use of the “Special Mark for Geographical Indication Products”, which will be reviewed by the Sichuan Provincial Bureau of Quality and Technical Supervision and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. The detection mechanism of Panzhihua truffle is selected by the Sichuan Provincial Bureau of Quality and Technical Supervision in a testing institution that meets the qualification requirements.