Comb and propolis waxes from Brazil (states of São Paulo and Paraná)

@article{Negri2000CombAP,
  title={Comb and propolis waxes from Brazil (states of S{\~a}o Paulo and Paran{\'a})},
  author={G. Negri and C. Marcucci and A. Salatino and M. L. Salatino},
  journal={Journal of the Brazilian Chemical Society},
  year={2000},
  volume={11},
  pages={453-457}
}
Samples of propolis and comb waxes of Apis mellifera were analyzed. Monoesters predominated, followed by hydrocarbons. The constituents were identified by gas chromatography/mass spectrometry. Wide variations in the patterns of hydrocarbons, acids and alcohols of the esters were found. Hydrocarbon chains cover the range C23 - C35, C27 and C31 alkanes predominating. The main carboxylic acid was C16:0, followed by C18:0 and C18:1. The alcohols were predominantly saturated n-homologues, ranging… Expand
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References

SHOWING 1-2 OF 2 REFERENCES