Liha töötlemine
acids (a.a) are utilized for microbial growth. Via the arginine deiminase (ADI) pathway, arginine is converted to
ornithine and supports the growth of lactobacilli in the latter stage of meat fermentation. Staphylococci modu-
late the aroma through the conversion of amino acids (particularly the branched-chain amino acids leucine,
isoleucine, and valine) into methyl-branched aldehyde, methyl-branched acids and sulphites, diacetyl, and ethyl
ester. The methyl ketones (2- pentanone and 2-heptanone) derive from intermediates of an incomplete ß-
oxidation pathway in staphylococci.
this gene is activated and induced by oxygen heme catalase and the second group nonheme
and hydrogen peroxide upon entry into the Mn-containing catalase. The presence of a
stationary phase
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