Liha töötlemine
the metabolism of arginine (Chaillou et al. ufactured with little or no added sugar.
206 Chapter 10
During fermentation and ripening, LAB inosine hydrolase, and nucleoside phosphor-
convert glucose (their primary energy source) ylase, all of which enable the release of a
to lactic acid, which is the main component ribose moiety from nucleoside (adenosine
responsible for the pH decrease. This acidifi- and inosine) and its subsequent metabolism
cation has a preservative effect, due to inhibi- (Chaillou et al. 2005). Moreover, the pres-
tion of pathogenic and spoilage bacteria with ence of methylglyoxal synthase, a novel
little resistance to low pH, and it contributes genetic trait in lactic acid bacteria, has been
to the development of the typical organolep- proposed as a pathway to counteract frequent
annaabi.ee 
