Use of quinoline alkaloids as markers of the floral origin of chestnut honey.

@article{Truchado2009UseOQ,
  title={Use of quinoline alkaloids as markers of the floral origin of chestnut honey.},
  author={Pilar Truchado and Isabel Molina Martos and Laura Bortolotti and Anna Gloria Sabatini and Federico Ferreres and Francisco A. Tom{\'a}s-Barber{\'a}n},
  journal={Journal of agricultural and food chemistry},
  year={2009},
  volume={57 13},
  pages={
          5680-6
        }
}
To identify potential floral markers of chestnut honey, the phytochemicals present in chestnut floral nectar collected by bees were analyzed. Two nitrogen-containing compounds were detected, isolated, and identified as 4-hydroxyquinaldic acid (kynurenic acid) and 4-quinolone-2-carboxylic acid by (1)H NMR and (13)C NMR. In addition, chestnut nectar contained the monoterpene 4-(1-hydroxy-1-methylethyl)cyclohexa-1,3-diene-1-carboxylic acid, its gentiobioside ester, and the flavonol quercetin 3… Expand
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