Chapter 316 Purple Qi from the East

In actuality, the micro-organism extracted from fire-bellied salamanders was the most appropriate but there were not many after all and it was impossible to extract large amounts. Earthworms lived underground and there were too many variables in the micro-organisms in its body; the new antibiotic created with it could be unstable. As for sea cucumbers, they were expensive and not suitable for mass fishing. Only the starfish was left. They ate shellfish and coral and were a threat to marine cultivation farms and corals. Furthermore, there were a large number of them. They were not used for food and had little medicinal value. They were the most economical choice for making a new antibiotic.