The 4th China Quality Tour·Qinghai Quality Tour was launched in Xining, and a new technology for the identification of Cordyceps sinensis was released.

China News Service, Xining, September 10th (Qi Zenbei) The 4th China Quality Miles and Qinghai Quality Tour event was launched in Xining on the 10th. New achievements in the identification of wild and artificial Cordyceps sinensis technology were released on the spot, and lightweight rapid detection equipment was displayed.

Qinghai is the world's core Cordyceps sinensis producing area, accounting for more than 60% of China's output. The annual output value of the Cordyceps industry reaches 18 billion to 20 billion yuan, driving hundreds of thousands of farmers and herdsmen to increase their incomes. In recent years, a large number of artificially cultivated Cordyceps have been put on the market. Their appearance is very similar to that of wild Cordyceps, making it difficult to distinguish them with the naked eye.

Jiang Lei, an associate researcher at the Northwest Plateau Institute of Biology, Chinese Academy of Sciences, said that the research results released this time have established two complementary identification technology systems, "one fast and one precise".

"Quick" is a portable device based on X-ray fluorescence spectroscopy technology, which can extract elemental fingerprints of Cordyceps and produce results in 30 seconds. It is suitable for on-site screening at purchase points and trading markets; "Quick" is a molecular confirmation technology based on second-generation sequencing that analyzes the mitochondrial genetic information of insect sources to achieve identification. It can still complete effective judgments and issue traceable authoritative conclusions for old samples that have been stored for a long time, have severe DNA degradation, and are difficult to detect by conventional means.

It is reported that the entire technology has been tested on 8,100 blind samples, and the overall accuracy rate exceeds 99%. Jiang Lei said that the purpose of this technical research is to solve the market identification problem, make up for the technical shortcomings of the industry, and promote the identification of Cordyceps from "judgment based on experience and naked eyes" to "judgment based on scientific data."