Isolation by HPLC and Characterisation of the Bioactive Fraction of New Zealand Manuka (Leptospermum Scoparium) HoneyCarbohydrate Research, Article in Press, Corrected Proof
Abstract: Using HPLC a fraction of New Zealand manuka honey has been isolated, which gives rise to the non-peroxide antibacterial activity. This fraction proved to be methylglyoxal, a highly reactive precursor in the formation of advanced glycation endproducts (AGEs).
Methylglyoxal concentrations in 49 manuka and 34 non-manuka honey samples were determined using a direct detection method and compared with values obtained using standard o-phenylenediamine derivatisation. Concentrations obtained using both the methods were similar and varied from 38 to 828 mg/kg.
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