1956
DOI: 10.1002/j.2050-0416.1956.tb02879.x
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General Composition of Non-Biological Hazes of Beers and Some Factors in Their Formation: Ii. Chromatographic Separation of Hop and Malt Tannins

Abstract: The polyphenolic constituents of hops and of malt have been examined by means of paper chromatography. The mixtures from the two sources were very complex but quite different in composition. This is in agreement with the results recorded earlier, which had revealed very considerable differences between the phenolic acids derived from barley tannins and from hop tannins by treatment with alkali.

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Cited by 22 publications
(4 citation statements)
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“…Long before this, however, in 1820, gallic acid was shown to be present in hop tannin (219) and not much later, in 1859, quercetin (CCXXXIX, R (399). The presence of gallic acid was later confirmed (149) and other phenolic acids identified include protocatechuic acid (149), p-hydroxycoumaric acid (38), and caffeic acid (38,149). Chlorogenic acid, neochlorogenic acid, and a third component, which gave caffeic and quinic acid on hydrolysis, were also observed (149).…”
Section: Polyphenolic Constituents (Tannins)mentioning
confidence: 93%
See 1 more Smart Citation
“…Long before this, however, in 1820, gallic acid was shown to be present in hop tannin (219) and not much later, in 1859, quercetin (CCXXXIX, R (399). The presence of gallic acid was later confirmed (149) and other phenolic acids identified include protocatechuic acid (149), p-hydroxycoumaric acid (38), and caffeic acid (38,149). Chlorogenic acid, neochlorogenic acid, and a third component, which gave caffeic and quinic acid on hydrolysis, were also observed (149).…”
Section: Polyphenolic Constituents (Tannins)mentioning
confidence: 93%
“…Harris (149) found the optimum yield of tannin was obtained by extraction with 70% ethanol. Examination of this and other fractions by two-dimensional paper chromatography demonstrated the presence of at least 77 components (149). Long before this, however, in 1820, gallic acid was shown to be present in hop tannin (219) and not much later, in 1859, quercetin (CCXXXIX, R (399).…”
Section: Polyphenolic Constituents (Tannins)mentioning
confidence: 97%
“…semikvantifi kovány pomocí 2D tenkovrstvé (papírové) chromatografi e (např. Harris, 1956;Hubáček a Trojna, 1964;Karel, 1960).…”
Section: Metody Pro Ověřování Autenticity Odrůd Chmele -účInný Nástrounclassified
“…have been identifi ed or semi-quantifi ed using 2D thin layer (paper) chromatography (e.g. Harris, 1956;Hubáček and Trojna, 1964;Karel, 1960).…”
Section: Polyphenolsmentioning
confidence: 99%