Tob. Sci., 1968, 12-26, p. 107-111, ISSN.0082-4623
Estimation of total tobacco plant phenols by their bonding to polyvinylpyrrolidone
USDA Crops Research Division, ARS, USDA; Department of Agronomy, University of Kentucky, Lexington, Kentucky USA
A spectrophotometric method is described for the estimation of total tobacco phenols in plant extracts based upon a separation of the plant phenols with polyvinylpyrrolidone at pH 3.5. The amount of phenol-polyvinylpyrrolidone insoluble complex as...