In response to the endogenous factors affecting the safety of traditional Chinese medicine, Tianjiang has strengthened its research on the origin, pre-processing and production processes to ensure its product safety and effectiveness.
Heavy metals and other harmful elements control
There were over 60 varieties from different batches shown heavy metals exceeding the standard. Based on the research results, the company has taken targeted measures to limit of heavy metal in these products.
Optimize the origin of raw materials: We compare the safe origin of raw herbs by examining the soil, water and air of the production area.
Pesticide residue control
Testing shows that there are nearly 20 varieties of Chinese herbal medicines that are prone to excessive pesticide residues. We have listed them as key varieties and applied two control measures.
Establish production base or a cooperative production base at suitable sites, strengthening field management,and reduce the use of pesticides.
Establish internal control standards for pesticide residues, and test pesticide residues before production. Any non-conforming product shall be re-inspected in-site.
More than 10 varieties of herbs are selected to have aflatoxin exceeding the standard, such as Suan Zao Ren, peach kernel, and Corydalis. Two strong and effective measures were taken to ensure the quality of raw materials and reduce the level of aflatoxin.
One is to construct or incorporate raw material production bases, and impose standard operating procedures of processing. For example, when spiny jujube flesh was removed to produce the kernel (Suan Zao Ren), the old way is to use long-term soaking and pound off the flesh. This method breeds mold, causing aflatoxin to exceed the standard. After confirming the source of the problem, the company established a cooperation base, and requires strict processing of harvesting mature fruits and hand peeling meat.
For varieties that are difficult to preserve, the raw material are supplied in season. For example, fresh Corydalis root needs to be dried immediately to prevent molding. Thecompany requires cooperative bases to dry new harvested slices immediately after cooking, and arrange the production by the company in the shortest time possible.
Sulfur dioxide residue control
Sulfur fumigation is one of the commonly used methods for traditional Chinese medicine to prevent mildew and insects, so excessive sulfur in the end product occurs. According to the results of the census of Tianjiang Pharmaceutical, more than 60 varieties of sulfur dioxide often exceeded the standard. With reference to the international testing methods and standards for sulfur dioxide, the company established strict internal control standards.