Kvasny Prum. 1987; 33(8-9): 279-283 | DOI: 10.18832/kp1987057

Determination and content of anthokyanogens in brewing materials.Peer-reviewed article

A. BARTKO, S. HONSOVÁ

The methods for the anthocyanogenos determination by hydrolysis with a mixture of butanol - HCl followed by a reaction with p-dimethylaminocinnamaldehyde were modified to permit the determination in solid and liquid samples. The extraction of barley and malt is performed with 75 % acetone and 10 mmol HCl . l^-1. Anthocyanogens are sorbed from extracts and water solution and then are purifired in batch extract columns Presep-1 (packing SiC₁₈). Varieties of Czech early barleys differ in the content of anthocyanogens only a little. Their average values in malt are in a range of about 110 mg in100 g.
(In Czech, English summary only)

Keywords: anthocyanogenos, contents, determination, barley, malt, beer, extraction

Published: August 1, 1987