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The origin of methylglyoxal in New Zealand manuka (Leptospermum scoparium) honey

, : The origin of methylglyoxal in New Zealand manuka (Leptospermum scoparium) honey. Carbohydrate Research 344(8): 1050-1053

Methylglyoxal in New Zealand manuka honey has been shown to originate from dihydroxyacetone, which is present in the nectar of manuka flowers in varying amounts. Manuka honey, which was freshly produced by bees, contained low levels of methylglyoxal and high levels of dihydroxyacetone. Storage of these honeys at 37 degrees C led to a decrease in the dihydroxyacetone content and a related increase in methylglyoxal. Addition of dihydroxyacetone to clover honey followed by incubation resulted in methylglyoxal levels similar to those found in manuka honey. Nectar washed from manuka flowers contained high levels of dihydroxyacetone and no detectable methylglyoxal.


PMID: 19368902

DOI: 10.1016/j.carres.2009.03.020

Other references

Barragan, E.I.iguez, J., 1982: Lepidocrocite, goethite and vermiculite in Ulzama Ultisols (Navarra). II. Anales de edafologia y agrobiologia 41(11-12): 2145-2159

Hirasawa K., 1969: Studies on renin angiotensin system part 2 studies on renal angiotensinase activity. Japanese Circulation Journal 33(9): 979-980

Podoprigorova V.G.; Kozlov A.V.; Azizova O.A., 1989: Lipid peroxidation and ceruloplasmin transferrin antioxidant system in donors. The blood serum ceruloplasmin, transferrin, malonic dialdehyde, iron and copper levels have been measured in donors. These parameters varied in groups of subjects aged 20-29 and 30-45, no age-associated differences being recorded within both the g...

Zhang LiLan; W.D.Hua; Hou YunDe, 1996: Study on the effect of Astragalus membranaceus on anti-rhinoviral activity of a human recombinant interferon alpha 2b on human diploid cell lines. A. membranaceus (AM) was reacted with recombinant interferon alpha 2b in WI-38, MRC-5 and 2BC human diploid cell cultures in China. Results showed that 0.3% AM had synergism with interferon in inhibiting cytopathic effects caused by rhinovirus typ...

Serdiukov, V.A., 1938: The experience of the leading collective farms and farm-laboratories in the Voroshilov district of the Sverdlov province.. N top-dressing with a basal dressing of a complete fertilizer gave the best results with wheat. For potatoes the best results were obtained with a basal dressing of 201. of manure and a top-dressing with mineral fertilizers.

Faix, S.; Faixova, Z.; Boldizarova, K.; Javorsky, P., 2005: The effect of long-term high heavy metal intake on lipid peroxidation of gastrointestinal tissue in sheep. The present study was designed to determine the effects of dietary heavy metal intake on malondialdehyde levels (MDA, product of cellular lipid peroxidation) in the tissues of gastrointestinal tract, kidneys and liver of sheep. The experiment was...

Furstman, E.F., 1968: In focus: solution to the problem of reciprocity. Journal - Southern California Dental Association 36(6): 202-202

Ebel J.P.; Fellner P.; Ehresmann C.; Stiegler P.; Fischel J.L.; Branlant C.; Krol A.; Sri J.; Lontie R., 1974: Structure and interactions of ribosomal rna of escherichia coli and of proteus vulgaris. Archives Internationales de Physiologie et de Biochimie 82(4): 765

Schwarzenfeld I.V., 1977: Distribution of the cholinergic false transmitter precursor n hydroxyethyl n methyl pyrrolidinium pyrrolidine choline and its metabolite acetyl pyrrolidine choline in sub cellular fractions of guinea pig brain. Naunyn-Schmiedeberg's Archives of Pharmacology 297(SUPPL II): R52

Bennett, J.A.; Contessa, S.T.; Turner, L.C., 2002: Parent to parent: preventing adolescent exposure to HIV. A 2-year pilot program implemented by public health nurses (PHNs) in partnership with the leaders of parent associations of 10 urban high schools encouraged communication about health-promoting sexual behavior between adults and adolescents. The p...