INVESTIGADORES
CERUTTI Estela soledad
artículos
Título:
Monitoring melatonin and its isomer in Vitis vinifera cv. Malbec by UHPLC-MS/MS from grape to bottle
Autor/es:
FEDERICO J.V. GÓMEZ, J. RABA, S. CERUTTI, M.F. SILVA.
Revista:
JOURNAL OF PINEAL RESEARCH
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Londres; Año: 2012 vol. 52 p. 349 - 355
ISSN:
0742-3098
Resumen:
Several studies have
shown the presence of melatonin and related compounds in grapes and wines. The
latter provides evidence of the possibility to enhance the nutraceutical
properties of premium wines. However, there are many external factors that can
influence the levels of this indolamine in grape and wines. In this study, the
monitoring of melatonin and its tentatively identified isomer was carried out
during the entire winemaking process in Vitis vinifera cv. Malbec by
ultra high-performance liquid chromatography-tandem mass spectrometry.
Laboratory and pilot studies were carried out to elucidate the role of grape,
yeasts, and tryptophan in the evolution of the indolamines during the
fermentation process. Melatonin was detected in grape extract within the range
120160 ng/g while its isomer was found in musts and finished wines. Our
results demonstrate that Saccaromyces cervisiae plays a decisive role
in contributing to the content of melatonin and its isomer in wine.