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Researchers trace enzyme behind body odour

A team of researchers has now found a unique enzyme responsible for the pungent characteristic smell we call body odour or BO.
Researchers trace enzyme behind body odour

A team of researchers has now found a unique enzyme responsible for the pungent characteristic smell we call body odour or BO.

Researchers from the University of York have previously shown that only a few bacteria in your armpit are the real culprits behind BO. Now the same team, in collaboration with Unilever scientists, has gone a step further to discover a unique "BO enzyme" found only within these bacteria and responsible for the characteristic armpit odour. The study was published in the journal Scientific Report.

This new research highlights how particular bacteria have evolved a specialised enzyme to produce some of the key molecules we recognise as BO.

Co-first author Dr Michelle Rudden from the group of Prof Gavin Thomas in the University of York's Department of Biology said: "Solving the structure of this 'BO enzyme' has allowed us to pinpoint the molecular step inside certain bacteria that makes the odour molecules. This is a key advancement in understanding how body odour works and will enable the development of targeted inhibitors that stop BO production at the source without disrupting the armpit microbiome."

Your armpit hosts a diverse community of bacteria that is part of your natural skin microbiome. This research highlights Staphylococcus hominis as one of the main microbes behind body odour.

Furthermore, the researchers say that this "BO enzyme" was present in S. hominis long before the emergence of Homo sapiens as a species, suggesting that body odour existed prior to the evolution of modern humans and may have had an important role in societal communication among ancestral primates.

This research represents an important discovery for Unilever R&D, made possible by its long-standing academic-industry collaboration with the University of York. Unilever co-author Dr Gordon James said: "This research was a real eye-opener. It was fascinating to discover that a key odour-forming enzyme exists in only a select few armpit bacteria - and evolved there tens of millions of years ago."

( With inputs from ANI )

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