Analysis of phenolic acids and flavonoids by high-pressure liquid chromatography

Phenolic Composition of Natural Wine Types

“…Snyder and Kirkland 1979) and on applications to food analysis (Charalambous 1979;Macrae 1982) are a sufficient general background to the subject. Isocratic systems, as used in the first HPLC investigations of grape and wine phenolics (Wulf and Nagel 1976), have been largely displaced by more efficient gradient elution systems. A selection of ana-lytical systems which have been applied to study of different phenolic categories is given in Table 3.…”

Quality evaluation of Platycladus orientalis (L.) Franco through simultaneous determination of four bioactive flavonoids by high-performance liquid chromatography

“…So far, analysis of flavonoids has been accomplished by high-performance liquid chromatography (HPLC) [7][8][9][10][11][12][13][14], but there was no report about analytical methods for determination of rutin, quercitrin, quercetin and amentoflavone simultaneously in PO. There was only previous report for determination of single flavonoid in PO [5,15].…”

Phenolic compounds in coffee pulp: Quantitative determination by HPLC

“…High-performance liquid chromatography (HPLC) has been displacing progressively other chromatographic techniques for the separation, identification and quantification of phenolic compounds (Wulf and Nagel 1976;Hartley and Buchan 1979;Nagels et aZ1980;Villeneuve et aZ1982;Mollerup-Anderson and Batsberg-Pedersen 1983;Vande-Casteele et aZ 1983) because of its sensitivity, resolution power, non-destructive nature and relative speed (Wulf and Nagel 1976;Schwartz and von Elber 1982). In some cases it has been used for the separation of complex mixtures of these compounds present in plant material extracts (Hardin and Stutte 1980;Moller and Herrmann 1982;Winter and Herrmann 1984).…”