Population-level antibacterial characterizationWhat the Irish 2011 umbrella documents about Eucalyptus globulus.
Blue gum's chemistry signature is 1,8-cineole (eucalyptol) — the volatile compound that gives Eucalyptus globulus its scent, carrying from nectar to honey in trace amounts (minuscule compared to essential oils). The variety-specific antibacterial story is population-level inclusion in the Irish 2011 Australian-flora survey, not species-exceptional activity.
E. globulus honey sits inside Irish, Blair, and Carter's (2011) 477-sample population-level survey of Australian flora antibacterial activity, in which 274 of 477 samples (57%) showed therapeutically useful activity. The full citation lives in the Sources section as src-1. This is umbrella-level evidence: blue gum is part of the broader Australian Eucalyptus cohort, not a species-specific exceptional-activity callout.
The marquee end of the Australian Eucalyptus range — Corymbia calophylla (marri), Eucalyptus marginata (jarrah), and Leptospermum polygalifolium (jellybush, congeneric with Manuka) — got the exceptional-activity callouts in the Irish 2011 paper. Blue gum is not in that subset. The honest read for E. globulus is moderate, peroxide-driven antibacterial activity at the population level, consistent with the broader 57% of Australian samples in the survey.
This is composition characterization, not therapy. The chemistry sits in the nectar; what happens in any individual's body when consumed varies and is not measured here. Blue gum's value in the kitchen rests on character and terroir, not on any specific health claim.