Decarboxylase Activity of microorganisms isolated from Kefir

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523381" target="_blank" >RIV/70883521:28110/19:63523381 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/19:63523381
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Decarboxylase Activity of microorganisms isolated from Kefir
Original language description
Biogenic amines (BA) are low-molecular nitrogenous compounds naturally occurring in living organisms, where they play an important role in many physiological processes. However, their excessive intake due to the consumption of BA rich food may pose a potential health risk to the consumers. The intake of BA can induce several digestive, circulatory and respiratory symptoms. In food, they are generally formed by microorganisms demonstrating decarboxylase activity from amino acids. Therefore, microorganisms naturally present in raw materials, introduced throughout the processing or added as starter culture can critically influence BA production during the manufacture of fermented products. Therefore, the main goal of this study was to determine the ability to produce eight BA (tryptamine, tyramine, cadaverine, putrescine, 2-phenylethylamine, histamine, spermine and spermidine) by 170 strains isolated from 3 different kefirs and their grains. The monitored BA were analyzed by a high performance liquid chromatography equipped with a UV/VIS DAD detector. All strains were found to produce 2-phenylethylamine, putrescine, cadaverine, tyramine and spermine. Only 10 isolates have been shown to produce histamine . No tested strain produced tryptamine or spermidine.
Czech name
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Czech description
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Project
<a href="/en/project/QK1710156" target="_blank" >QK1710156: New approaches and methods of analysis to ensure the quality, safety and health wholesomeness of cheeses, the optimization of their production and the streamline of hygiene and sanitation together with the lowering of environmental load by waste water.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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