PT  - JOURNAL ARTICLE
AU  - April J. Weekley
AU  - Paul Bruins
AU  - Matthew P. Augustine
TI  - Nondestructive Method of Determining Acetic Acid Spoilage in an Unopened Bottle of Wine
AID  - 10.5344/ajev.2002.53.4.318
DP  - 2002 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 318--321
VI  - 53
IP  - 4
4099  - http://www.ajevonline.org/content/53/4/318.short
4100  - http://www.ajevonline.org/content/53/4/318.full
SO  - Am J Enol Vitic.2002 Jan 01; 53
AB  - Nuclear magnetic resonance (NMR) spectroscopy was used to monitor acetic acid levels in intact wine bottles. An NMR probe and a spectrometer capable of examining full intact wine bottles are described and used to reliably measure the acetic acid content in wine down to 0.5 g/L, more than half the accepted limit in normal wine.Acknowledgments: The generous gift of the 1997 vintage UC Davis Experimental Vineyard wine from the UC Davis Viticulture and Enology Department, extensive conversations with Nick Marshall and Gus Maki, and the support of this work from the David and Lucile Packard Foundation and the Alfred P. Sloan Foundation are gratefully acknowledged.