The quality of Cordyceps sinensis basically follows a law. The higher the altitude, the better the quality of Cordyceps sinensis. Specifically, the quality of Cordyceps sinensis in Naqu, Tibet and Yushu, Qinghai is good.
Cordyceps sinensis sold by Beijing Tongrentang Health Pharmaceutical Co., Ltd. selects high-altitude Cordyceps sinensis, and uses 300 years of traditional technology, fine processing and deep cleaning. In order to ensure the product quality, the health pharmaceutical industry strictly controls the quality, and strictly controls and checks the following items when receiving the goods:
1. moisture content: the moisture content is lower than 10%. The water content stipulated in Pharmacopoeia is not higher than 13%, and the control of water content in health care pharmaceutical industry is stricter than that stipulated by the state.
2. Color: golden yellow or brownish yellow, without adding any chemicals; Generally speaking, the freshest and best quality Cordyceps sinensis is golden yellow or brownish yellow in color, while the oldest and frequently processed Cordyceps sinensis is relatively dark in color.
3. All of them are detected by a metal detector to ensure that Cordyceps sinensis is pure and free of impurities; When the company receives the goods of Cordyceps sinensis, it will use the metal detector imported from Japan to detect it. Cordyceps sinensis with a metal greater than 0.4 mm can be detected, which is the first time that the metal detector detects it. The factory will conduct a second test on the metal detector.
4. Hand inspection: Each Cordyceps is selected after 5- 10 manual hand inspection. Hollow Cordyceps sinensis, Cordyceps sinensis with bamboo sticks and shredded grass with glue can all be picked out by manual inspection.
6. Physical and chemical detection: The company will detect Cordyceps sinensis when receiving the goods, including sulfur dioxide detection and adenosine detection.
Sulfur dioxide detection: in line with relevant national regulations, it can eliminate sulfur-smoked Cordyceps sinensis.
Adenosine detection: The adenosine content should be greater than 0.0 1mg/kg to prevent the extracted Cordyceps sinensis.