China truffles are naturally distributed in Yongren County, Yunnan Province and Panzhihua, Sichuan Province, and radiate to Liangshan Prefecture, Sichuan Province and Chuxiong Prefecture, Yunnan Province. The output of truffle distribution circle centered on Yongren County in Yunnan and Panzhihua in Sichuan accounts for about 80% of the national truffle output. Yanbian County in Panzhihua successfully established a 20-mu artificial truffle cultivation base in Xinjiu Township. In 2008, Panzhihua was awarded the honorary title of "China Truffle Town" by the State Forestry Administration, and in 20 13, the General Administration of Quality Supervision, Inspection and Quarantine awarded "Panzhihua Truffle" as a geographical indication product.

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Truffles are born in the shallow soil layer or rhizosphere soil of coniferous and broad-leaved mixed forests such as Pinus armandii, Cunninghamia lanceolata, Quercus acutissima and Coriaria sinica. Truffles are mycorrhizal fungi, so it is usually easy to find them in close contact with the roots of trees. The spore diffusion of truffles is accomplished by animals that eat fungi. I prefer well-drained and neutral or alkaline muddy or calcareous soil. Truffles have fruits all year round, and according to different kinds, they can be found buried between litter and soil.

Truffles (truffles) have unique fragrance, taste and nutritional value, and human beings have been eating truffles for thousands of years. In developed countries such as Europe and America, truffles are known as "black diamonds" and are the best of wild mushrooms. They are also known as the three treasures together with caviar and foie gras.

Truffles have many therapeutic effects, including 17 kinds of amino acids, 8 kinds of vitamins, a proper amount of protein, and more than 50 kinds of physiologically active components such as androsterone, sterols, sphingolipids, fatty acids, amino acids and trace elements.

Baidu Encyclopedia-China Truffles