Why did it take so long for penicillin to be mass produced?

Answer 1

When Alexander Fleming discovered penicillin in 1928 he thought it was wonderful but when he published his paper he found that it received very little interest and eventually Fleming went back to his previous research.

In 1939 Howard Florey and Ernst Chain, two scientists working in Oxford read about Fleming's research and they set up a team of specialists to develop penicillin. In 1940 they tested on mice and in 1941 on humans. Florey was determined to develop it but it could not have been synthesised by chemicals. The mould had to be cultured on a broth and exposed to air but the team could not find a suitable "base". They had to use milk churns, bed pans etc.

No factories had the technology to produce penicillin partly because they were damaged because of the war or they were working at full capacity to produce other drugs for the war.

In June 1941 Florey and another member of his team went to America to see if the drug companies there would fund their research. At first they were unsuccessful but when the USA entered the war in December 1941 the US government was prepared to fund the mass production on penicillin. They knew many soldiers were likely to die from infection rather then from injuries, so the mass-production of penicillin would save many lives.

Florey had discovered that drying the mould at low temperatures was the best method of purifying penicillin. Chemists at the medical company Pfizer, in NY, used an old ice-cream freezer to develop a method of freeze dying that was eventually used for large scale production in 1944 and was given to allied troops all over Europe.

Answer 2

Mass production of penicillin was delayed due to challenges in isolating and purifying the antibiotic from the mold, obtaining adequate funding, and scaling up production techniques. The process required research to optimize fermentation conditions and develop efficient extraction methods. Additionally, World War II increased the urgency to mass produce penicillin, leading to increased efforts and advancements in production methods.