RT Journal Article
SR Electronic
T1 Colorimetry of Total Phenolics with Phosphomolybdic-Phosphotungstic Acid Reagents
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 144
OP 158
DO 10.5344/ajev.1965.16.3.144
VO 16
IS 3
A1 V. L. Singleton
A1 Joseph A. Rossi, Jr.
YR 1965
UL http://www.ajevonline.org/content/16/3/144.abstract
AB Several details of the assay of total phenolic substances have been investigated and an improved procedure developed. The improvements include the use of Folin-Ciocalteu reagent rather than the Folin-Denis reagent, gallic acid as a reference standard, and a more reproducible time-temperature color development period. The values obtained are less subject to variation and interference from several nonphenols, yet are directly comparable to the "tannin" values obtained by the previously standard method.