Oxford chemists find honey offering in 2,500 year old shrine
They contained an orange-brown sticky substance archaeologists assumed was honey, as it was often left as an offering to gods or buried alongside the dead.Dr Luciana da Costa Carvalho, project co-lead, said: "This research is a reminder that archaeological collections hold untapped scientific potential and how new information can be revealed when modern analytical techniques and multidisciplinary collaborations are combined."
For 30 years, three different teams analysed the residue, but failed to confirm the presence of honey and said it was some sort of animal or vegetable fat contaminated with pollen and insect parts.Now, chemists have used modern techniques to examine the contents of the bronze jar, through a partnership with the University of Oxford's Ashmolean Museum and the Archaeological Park of Pompeii.
Professor James McCullagh, director of Oxford's mass spectrometry research facility in the department of chemistry, co-led the project. He said the number of analytical techniques used for the study were "key to the success of this study"."By applying several mass spectrometry and spectroscopic approaches we were able to reveal a comprehensive picture of the residue's molecular composition — enabling us to distinguish between contaminants, degradation products, and original biomarkers," he said.A university statement added that the authors of the study now hoped their work would inspire further re-analysis of legacy materials, including those held in museum collections.
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