Kvasny Prum. 1981; 27(3): 58-64 | DOI: 10.18832/kp1981011

Information obtained by studying phenolic compounds in smoked malts ordered.Peer-reviewed article

M. ONDRÍŠEKOVÁ, V. SEĎOVÁ

The results presented in this report should precize the method of phenolic compound estimation in smoked malt since its description rendered by the firm Suntory has not given full particulars. Owing to that it was necessary to work out single steps of sample preparation, chromatographic process and its evaluation to obtain the optimal results. The most suitable conditions of gas chromatography are as follows: FFAP column (10 % ) on Chromosorbe HMDS (60-80 mesh), column length 1,5 m, diameter 4 mm, column temperature 70 to 250°C (10 °C/min), injector temperature 300 °C, detector FID, detector temperature 300 °C, carrying gas - nitrogen. Flow rate of the carrying gas was adjusted so that the standard peak might be obtained 17 mm after the feed. The phenol peak height is compared with the height of the standard peak, which represents probably the guaiacol response and its area does not depend on that how the malt was been smoked. The malt is supposed to be satisfactory when phenol + ortho-cresol peak is higheer than the standard peak height multiplied by 1,6. Using this way of phenolic compound content determination there were no compplaints from the firm Suntory.
(In Slovak, English summary only)

Keywords: malting proscess, phenolic compounds, gas chromatography

Published: March 1, 1981