RT Journal Article
SR Electronic
T1 Effect of Thermal Treatment and Oak Chips on the Volatile Composition of Pedro Ximénez Sweet Wines
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 91
OP 95
DO 10.5344/ajev.2010.61.1.91
VO 61
IS 1
A1 Jose I. Santiago Hurtado
A1 Nieves Lopez De Lerma
A1 Juan Moreno
A1 Rafael A. Peinado
YR 2010
UL http://www.ajevonline.org/content/61/1/91.abstract
AB Young, sweet Pedro Ximénez wines were thermally treated at 65°C for 10, 20, or 30 days to reduce their overall oxidative aging time. Volatile aroma compounds associated with typical aroma descriptors of aged Pedro Ximénez wines were determined by gas chromatography-mass spectrometry. Formation of Maillard reaction products, including furfural derivatives, dihydromaltol, and 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one, increased during the thermal treatment, while others, such as 2-methoxy-4-vinylphenol, decreased. Wines containing oaks chips had increased concentrations of compounds that contribute to oak and vanilla aromas. Based on these results, thermal treatment of Pedro Ximénez wines may be an effective method to shorten oxidative aging time, thus allowing a possible decrease in production costs.