Harvest and purification processes that take out cells, mobile particles and media elements whilst defending the intermediate or API from contamination (significantly of a microbiological character) and from loss of quality Efficiency Qualification (PQ): documented verification which the tools and ancillary systems, as linked together, can accomplish efficiently and reproducibly https://www.rilife.co/blog/active-pharma-ingredients-api-importers-suppliers-exporters-in-india/