PT  - JOURNAL ARTICLE
AU  - John A. Boyle
AU  - Limei Hsu
TI  - Identification and Quantitation of Ellagic Acid in Muscadine Grape Juice
AID  - 10.5344/ajev.1990.41.1.43
DP  - 1990 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 43--47
VI  - 41
IP  - 1
4099  - http://www.ajevonline.org/content/41/1/43.short
4100  - http://www.ajevonline.org/content/41/1/43.full
SO  - Am J Enol Vitic.1990 Jan 01; 41
AB  - Muscadine grape juice will occasionally produce a sediment upon standing for long time periods. In order to seek approaches to elimination of this sediment, it was necessary first to identify it and then to quantitate the material responsible. The sediment was identified through various chemical and spectrophotometric means as ellagic acid. This material could be separated, identified, and quantitated in juice by using HPLC. A simple spectrophotometric assay also sufficed for quantitation. Different juice sources contained highly variable amounts of ellagic acid.