PT  - JOURNAL ARTICLE
AU  - C. R. Strauss
AU  - B. Wilson
AU  - R. Anderson
AU  - P. J. Williams
TI  - Development of Precursors of C<sub>13</sub> Nor-Isoprenoid Flavorants in Riesling Grapes
AID  - 10.5344/ajev.1987.38.1.23
DP  - 1987 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 23--27
VI  - 38
IP  - 1
4099  - http://www.ajevonline.org/content/38/1/23.short
4100  - http://www.ajevonline.org/content/38/1/23.full
SO  - Am J Enol Vitic.1987 Jan 01; 38
AB  - Concentrations of vitispirane, 1,1,6-trimethyl-1,2-dihydronaphthalene (TDN) and damascenone were determined in heated Riesling grape juices expressed from fruit harvested over a range of maturities. There was a positive relationship between the concentrations of the heat-induced volatiles and °Brix values which suggested that precursors of the nor-isoprenoids develop in the fruit along with sugar translocation. Given the importance of TDN in particular to bottle-aged character, this study implicates grape maturity as a contributing factor in the ultimate bottle aging of Riesling wines.