Brewing microbiology – bacteria of the genus Clostridium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F18%3AN0000097" target="_blank" >RIV/60193697:_____/18:N0000097 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.kvasnyprumysl.cz/pdfs/kpr/2018/05/05.pdf" target="_blank" >https://www.kvasnyprumysl.cz/pdfs/kpr/2018/05/05.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp201830" target="_blank" >10.18832/kp201830</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Brewing microbiology – bacteria of the genus Clostridium

Popis výsledku v původním jazyce

In most cases, the Clostridium species rank among the sporogenic obligate anaerobes, which are sensitive to bitter hop substances and acidic pH. Thus they rank among the less dangerous contaminants in brewing operations. Their increased incidence in breweries can be linked to the modernization of technologies, which reduces access to oxygen in individual production phases. The endospores of Clostridium bacteria were isolated, e.g., from the storage vessels for liquid malt substitutes (glucose, starch syrups). They are able to survive the conditions of mashing and wort boiling, but they can not germinate in the following phases of beer production. However, their ability to be present in the vegetative form until the wort preparation presents a risk of damage to finished beer - vegetative cells form a number of undesirable organic acids, which may pass into the finished product. We provide here an overview of basic morphological and physiological properties of these bacteria and describe their importance in the brewing process. Particular attention is given to species Clostridium acetobutylicum, C. butyricum, C. cellulovorans, C. pasteurianum, C. thermocellum, "C. thermosaccharolyticum" (Thermoanaerobacterium thermosaccharolyticum) and C. tyrobutyricum, which were detected in brewing operations.

Název v anglickém jazyce

Brewing microbiology – bacteria of the genus Clostridium

Popis výsledku anglicky

In most cases, the Clostridium species rank among the sporogenic obligate anaerobes, which are sensitive to bitter hop substances and acidic pH. Thus they rank among the less dangerous contaminants in brewing operations. Their increased incidence in breweries can be linked to the modernization of technologies, which reduces access to oxygen in individual production phases. The endospores of Clostridium bacteria were isolated, e.g., from the storage vessels for liquid malt substitutes (glucose, starch syrups). They are able to survive the conditions of mashing and wort boiling, but they can not germinate in the following phases of beer production. However, their ability to be present in the vegetative form until the wort preparation presents a risk of damage to finished beer - vegetative cells form a number of undesirable organic acids, which may pass into the finished product. We provide here an overview of basic morphological and physiological properties of these bacteria and describe their importance in the brewing process. Particular attention is given to species Clostridium acetobutylicum, C. butyricum, C. cellulovorans, C. pasteurianum, C. thermocellum, "C. thermosaccharolyticum" (Thermoanaerobacterium thermosaccharolyticum) and C. tyrobutyricum, which were detected in brewing operations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10606 - Microbiology

Projekt

<a href="/cs/project/LO1312" target="_blank" >LO1312: Výzkumné senzorické centrum v Praze a Výzkumná a vývojová varna - udržitelnost a rozvoj</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Kvasný průmysl

ISSN

0023-5830

e-ISSN

2570-8619

Svazek periodika

64

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

242-247

Kód UT WoS článku

000447465000005

EID výsledku v databázi Scopus

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