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Date: | Tue, 29 Jan 2019 09:05:02 -0500 |
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Here’s an interesting recently published paper re. unifloral honey and the challenges of melissopalynology.
Sniderman JMK, Matley KA, Haberle SG, Cantrill DJ (2018) Pollen analysis of Australian honey. PLoS ONE 13(5): e0197545.
https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0197545&type=printable
Note mention of a pollen reference collection: “Pollen was identified by reference to the author’s modern pollen reference collection…”
It certainly seems, based on what I’ve read thus far, that one needs access to, or needs to create, a local pollen reference library in order to do pollen analysis of floral sources in honey.
“[I]t is perhaps not surprising that a pollen analytical study commissioned by Australia’s Rural Industries Research and Development Corporation, and carried out by a prominent European food testing consultancy, found that of 20 Australian honey samples described by beekeepers as unifloral Eucalyptus or Corymbia honeys (that is, in theory, honeys produced primarily from the nectar of a single species), seven were not accepted as unifloral Eucalyptus honeys. Of these seven, four were considered primarily ‘blossom’ honeys or honeydew honeys, and one was not accepted as Eucalyptus honey at all. The reason for this scepticism by European melissopalynologists was presumably that pollen they identified as Eucalyptus did not constitute a sufficiently high proportion of the total pollen in these honeys. International Honey Commission criteria for accepting Eucalyptus unifloral honeys are based on examination of 208 European-Mediterranean honey accessions…. One likely explanation for this difference is that eucalypt honeys produced in the Mediterranean region are derived from very few species. By comparison, in Australia there are ~800 species of Eucalyptus, dozens of which may be used by beekeepers. ” Etc.
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