Is this phage contamination in my E. coli LB plasmid prep? : r labrats Harvesting E.coli from LB Agar Plates E coli cultures hi res stock photography and images Alamy Can anyone help me with my bacterial culture (there is an Alien structure inside)? ResearchGate E. coli is a type of bacteria that is commonly used in biotechnology to produce insulin for diabetes treatment. Insulin is a hormone that helps regulate blood sugar levels in the body,