J 2009

A Contribution to Analysis of "Czech Beer" Authenticity

OBRUCA, S., I. MAROVA, K. PARILOVA, L. MUELLER, Zbyněk ZDRÁHAL et. al.

Basic information

Original name

A Contribution to Analysis of "Czech Beer" Authenticity

Authors

OBRUCA, S. (guarantor), I. MAROVA, K. PARILOVA, L. MUELLER, Zbyněk ZDRÁHAL (203 Czech Republic, belonging to the institution) and R. MIKULIKOVA

Edition

Czech Journal of Food Sciences, CZECH ACADEMY AGRICULTURAL SCIENCES, 2009, 1212-1800

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

21101 Food and beverages

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 0.602

Organization unit

Faculty of Science

UT WoS

000269005600101

Keywords in English

hop; malt; phenolics; natural substance; Czech beer; authenticity

Tags

Tags

International impact, Reviewed
Změněno: 19/6/2020 13:44, Mgr. Marie Šípková, DiS.

Abstract

V originále

Total benefit effect of beer is a result of many individual contributions of natural substances present in such complicated biological material. Recently, regional mark "Czech beer" was obtained by EC. This beer is processed by traditional technology using only recommended brewery materials. Presented work is focused on proteomic and metabolomic analysis of some characteristic active substances specific for "Czech beer". Eight beer samples obtained from retail chain and/or from breweries were enrolled into this study. Polypeptides and proteins that influence beer sensory properties originated mainly from malt. The results of our preliminary study indicate that the main protein fractions in most of beers are protein Z, LTP1 and hordein/glutelin fragments. 21) analyses of "Czech beer" differed in several spots when compared with beer made by other technology. Further, individual beer phenolics originated from malt and hop were analysed by HPLC/UV-VIS and LC/MS. Individual beers differed in distribution as well as in content of phenolics. Hence, some phenolic derivatives seem to be useful as potential authenticity markers.