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Experimental continuous feed stirred tank reactor, London, England, 1973

Enzymes are proteins that speed up chemical reactions in cells. Nearly all processes in the body require enzymes. They can be extracted and used on their own. This early reactor was designed in the 1960s by a group led by Professor Malcolm Lilly of the Biochemical Engineering department at University College London. It used the enzyme penicillinase bonded to cellulose to cut the side arm off the penicillin molecule. The enzyme was fixed (or ‘immobilised’) and a solution containing penicillin passed continuously in. The modified product flowed out the other end. Other groups were then bonded on to create new powerful drugs. The technology was widely used to produce familiar drugs such as amoxicillin.

Object number:

1984-493

 

Glossary:

Glossary: penicillin

The first antibiotic drug to treat infections which is made from the mould penicillium. Its discovery is attributed to Alexander Fleming in 1928.

Glossary: stirred tank reactor

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