Earthworms are anthraquinone chemicals. The complex of bismuth exists in nature and can also be artificially synthesized. Terpenes include products and dimers of varying degrees of reduction, such as indophenol, oxidized phenol, fluorenone, and the like, as well as steroids of these compounds. In natural products, earthworms are often found in metabolites of higher plants and lower plant lichen and fungi. It has the functions of stopping bleeding, antibacterial, venting, and diuresis.

The macroporous adsorbent resin (special resin for the extraction of terpenoids) provided by Suzhou Bojie Resin Technology Co., Ltd. can extract high-purity terpenoids with large adsorption capacity, fast adsorption rate, recyclable and reusable resin, and easy operation. Cost saving, high mechanical strength of the resin, economical and durable, suitable for industrial large-scale production.