VIEW ARTICLE    DOI: 10.1094/ASBCJ-35-0150

Automated Procedure for the Estimation of Total Polyphenol Content in Beer, Wort, Malt, and Barley. V. M. Bendelow, Agriculture Canada Research Station, Winnipeg, Manitoba, R3T 2M9. J. Am. Soc. Brew. Chem. 35:0150, 1977.

An automated procedure using 4-aminoantipyrine as a chromogen was used to estimate total polyphenol content in beer, wort, malt, and barley. For 23 beers with a wide range in test results, the correlation between the manual European Brewery Convention method and the automated method was 0.88. Barley and malt determinations were made on 30% aqueous dimethylformamide extracts of grain. Cultivar differences were found, suggesting the use of the procedure to select for polyphenol content in lines from barley breeding programs.

Keywords: Automated analysis, Barley, Beer, Polyphenols.