Resumen

TAQUICHIRI, Marco Antonio et al. Trans resveratrol measurements onwines and grapes from Tarija Central Valley undertwo ultraviolet solar radiation levels. Rev. Vent. Cient. [online]. 2017, vol.8, n.13, pp. 1-6. ISSN 2305-6010.

The results of measurement of trans-resveratrol in two Vitis vinifera cultivars: Cabernet Sauvignon and Syrah are presented in this report. These vine varieties were subjected to two different solar ul-traviolet-B (UV-B) radiation levéis: full UV-B and semi attenuated (20% of attenuation) UV-B. These two vineyards are located at 1879 m above sea le-vel (masl) and at the same geographic location. The content of resveratrol in grapes and wines were eva-luated using High Performance Liquid Chromato-graphy (HPLC). Samples under 20% of solar UV-B showed the highest levéis of total resveratrol.

Palabras llave : Resveratol; high quality wines and grapes; Vitis vinifera; ultraviolet radiation.