Evening Lecture: Detecting Key Volatiles of Various Antibacterial Strengths in Manuka Honey
“Detecting Key Volatiles of Various Antibacterial Strengths in Manuka Honey”
Dr Shazia Zafar, University of Birmingham
Proton Transfer Reaction Mass Spectrometry (PTR-MS) is a highly sensitive and rapid direct sampling instrument and is the most widely used method for real-time monitoring of volatile organic compounds (VOCs). It has the ability to detect VOCs in concentrations as low as parts-per-trillion, therefore PTR-MS can be used to detect molecules in different types of environments such as the atmosphere, breath, food, space and drugs and explosives detection, like at the airport.
This talk will explain how we used PTR-MS for an investigation on the headspace (gas-space directly above the honey) of various Manuka honeys to ascertain the volatiles being emitted and to determine any correlations between the Unique Manuka Factor (UMF) and volatile concentrations. Manuka honey is a valued for its high antibacterial properties and as such is an expensive product. One important VOC, methylglyoxal, is associated with the unique antibacterial properties of Manuka honey, which is rated according to the UMF.
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