Water-Soluble Constituents of Fruit I. Some Observations on the Occurrence of Free Galacturonic Acid in Fruit

Abstract

Glucuronic acid showed no tendency to convert to the lactone when run on paper chromatograms in a variety of solvent mixtures. There were only slight differences between the RF values of glucuronic and galacturonic acids in all the solvents used, including two mixtures for which large differences in RF had been recorded.