Contaminating microorganisms in quark-type cheese and their capability of biogenic amine production

The aim of this study was to characterise the contaminating microorganisms during individual stages of manufacture of quark-type cheese and also describe their capability of biogenic amine production. We isolated and identified 118 contaminating microorganisms for which the production of biogenic amines has been established. Over half of the isolates were capable of significantly producing at least one biogenic amine and, in some cases, multiple amines (content values for a particular biogenic amine exceeding 200 mg/L of broth). The strongest production ability of the isolated microorganisms was for putrescine and tyramine. © 2018 Society of Dairy TechnologyMinistry of Agriculture of the Czech Republic; National Agency for Agriculture Research [QK1710156]; Tomas Bata University in Zlin, Internal Grant Agencies [IGA/FT/2017/003