Several commercial HPLC columns and gels were studied in order to fractionate phenolic
compounds from grapes by molecular size. Sephadex G type were the most appropriate for …

An improved analytical method was developed for the determination of phenoliccompounds
in grapes. Phenolic compounds were fractionated into acidic and neutral groups by passing …

A comparison of different extraction procedures for determination of sugars and organic
acids in grapes is described. Reliable recoveries during simultaneous extraction of sugars …

A simple fractionation method was developed to analyze phenolic compounds other than
anthocyanins in red grapes using HPLC. The methanol extract of Concord and de Chaunac …

A normal-phase LC method has been developed to analyze high-molecular-mass grape
phenolic compounds. Samples are prepared by first isolating phenolics using C18-SPE. The …

A simple chromatographic method using Sephadex LH-20 was developed to separate non-
polymeric and polymeric phenols. Non-polymeric phenols are eluted from the gel by 60 …

Phenolic compounds in 21 grape cultivars grown in New York during the 1985 season were
analyzed by using column chromatography, thin layer chromatography, and high …

Assessment of the phenolic content of red grapes is an important prerequisite for
understanding how grape phenols impact wine quality. The influence of selected factors on …

Low molecular weight phenolic compounds were separated by high performance liquid
chromatography on hydrocarbon‐bonded reverse phase packings, with a water‐methanol …

The effect of the presence of S02, alcohol, and high temperatures for various times of contact
on the extraction of some phenolic compounds from grape seeds was investigated using …