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COLORIMETRIC DETERMINATION OF PHENOLS IN PEATED MALTS USING A MODIFIED KLEBER'S METHOD
Author(s) -
Sugibayashi K.,
Sekiya H.,
Nishimura K.
Publication year - 1983
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1983.tb04150.x
Subject(s) - chromatography , reproducibility , chemistry , steam distillation , distillation
Kleber's method was modified to determine the amount of volatile phenolic compounds, that is, the pasting degree of peated malt. Steam distillation was done using a specially designed apparatus directly with the malt instead of the wort. The modified Kleber's method, when compared with Macfarlane's method by quantitative analysis using gas chromatography, was more sensitive and showed higher reproducibility and accuracy.