Leptosperin is a naturally occurring chemical, found only in the nectar of Manuka plants (and a few very close relatives). It was first identified (and patented) by Japanese researcher Kato in 2014*.
*Kato Y, Fujinaka R, Ishisaka A, Nitta Y, Kitamoto N, Takimoto Y. Plausible authentication of Manuka honey and related products by measuring leptosperin with methyl syringate. J. Agric. Food Chem., 2014, 62 (27), pp 6400-6407
Leptosperin concentration is stable over time, and therefore measuring its concentration in honey is a good way of identifying whether the honey comes from Manuka nectar, and whether it can be labelled as Manuka, or a Manuka blend, or as a multi-floral honey. Leptosperin is the first of what could be a number of Manuka specific chemical markers, which are used to identify Manuka honey for authenticity and labelling purposes.
This patent is now licensed to the Unique Manuka Factor Honey Association (**UMF® Honey Association) and Fera is the only laboratory in UK to be the preferred partner by the UMF® Honey Association as an official testing laboratory for independently verifying the UMF® rating of Manuka honey
Fera offers chemical and microbiological analysis - including the new Leptosperin Manuka specific marker test to confirm the authenticity of honey labelled as 'Manuka'. All analyses are fully validated and performed to current industry standards.
A sub sample of honey is extracted in ultra-pure water, diluted and analysed by Ultra Performance Liquid Chromatography (UPLC). Fera is the only laboratory in UK to be the preferred partner by the UMF® Honey Association as an official testing laboratory for independently verifying the UMF® rating of Manuka honey
|Leptosperin||UPLC-UV-FLD||10 working days|
To speak with us about this services, or for any other services, please contact the Customer Service Group on +44 (0)300 100 0323 or e-mail us at
To have your honey tested you need to send approx. 50g of honey in a plastic container with a screw lid. The sample should not contain wax and just be a representative sample. Download and complete our Food Generic Sample submission form and send it along with your samples to;
Ella Patel (Food Analysis)
Fera Science Ltd
York, YO24 4EJ
Download our Sample submission form here: Food Generic Sample Submission Form
T: +44 (0)300 100 0323
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