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Friday 26 June 2015

The content of phenolic compounds in leaf tissues of Aesculus glabra and Aesculus parviflora walt.

Molecules. 2015 Jan 28;20(2):2176-89. doi: 10.3390/molecules20022176.

The content of phenolic compounds in leaf tissues of Aesculus glabra and Aesculus parviflora walt.

Author information

  • 1Department of Fruit, Vegetable and Grain Technology, Wroclaw University of Environmental and Life Sciences, 37/41 Chełmońskiego St., Wroclaw 51-630, Poland. jan.oszmianski@up.wroc.pl.
  • 2Department of Fruit, Vegetable and Grain Technology, Wroclaw University of Environmental and Life Sciences, 37/41 Chełmońskiego St., Wroclaw 51-630, Poland. joanna.kolniak-ostek@up.wroc.pl.
  • 3Department of Biology and Pharmaceutical Botany with Garden of Medicinal Plants, University of Medicine in Wrocław, Kochanowskiego 12, Wrocław 51-601, Poland. agata.biernat@umed.wroc.pl.

Abstract

In plants, flavonoids play an important role in biological processes. They are involved in UV-scavenging, fertility and disease resistance. Therefore, in this study, we attempted to quantify and characterize phenolic compounds in Aesculus parviflora Walt. leaves and Aesculus glabra leaves partly suffering from attack by a leaf mining insect (C. ohridella). A total of 28 phenolic compounds belonging to the hydroxycinnamic acid, flavan-3-ols and flavonol groups were identified and quantified in Aesculus parviflora and A. glabra leaf extracts. Significantly decreased concentrations of some phenolic compounds, especially of flavan-3-ols, were observed in infected leaves compared to the non-infected ones. Additionally, a higher content of polymeric procyanidins in leaves of Aesculus parviflora than in Aesculus glabra may explain their greater resistance to C. ohridella insects.