High Levels of Resveratrol in Grapes Cultivated at High Altitude Valleys in Bolivia

Marco Taquichiri, Ruth Ayarde, Pastor Gutierrez, Atma Sol Bustos, Carolina Paredes, Juan Carlos Callisaya, Juan Carlos Surco, Eduardo R. Palenque, Flavio Ghezzi, Juan Antonio Alvarado, J. Mauricio Peñarrieta

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Trans-resveratrol, total antioxidant capacity (TAC), and total phenolic compounds were assessed in Bolivian grape cultivars collected at high altitude valleys. The TAC of the grapes ranged from 0.8 to 22 μmol Trolox equivalents/g dry matter determined by 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid), and from 0.6 to 10 determined by the ferric reduction antioxidant power. In the present study, we observed that under certain conditions trans-resveratrol levels in Bolivian grapes are 10-fold higher than the reported data from the literature. Additionally, the temporal evolution in three different solar ultraviolet-B radiation levels was carried out to understand their effect on the oxidative processes.

Original languageEnglish
Pages (from-to)311-326
Number of pages16
JournalInternational Journal of Fruit Science
Volume14
Issue number3
DOIs
StatePublished - Jul 2014

Bibliographical note

Funding Information:
This study was supported by the Swedish International Development Agency (SIDA) under the agreement with UMSA and the Bolivian Government through the IDH projects.

Keywords

  • Bolivia
  • antioxidant capacity
  • grapes
  • solar ultraviolet-radiation
  • trans-resveratrol

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