Fig. 2. Changes in the typical microbiota during ripening of chorizo manufactured
with different concentrations of nitrate and nitrite. Lactic acid bacteria ( ); Grampositive
catalase-positive cocci ( ); Enterobacteriaceae ( ): - batch HN, high
nitrate/nitrite;:batch MN, medium nitrate/nitrite; △ batch LN, low nitrate/nitrite;
, batch C, no nitrate/nitrite. The dotted line represents the detection limit of the
enumeration method (0.7 log cfu/g). Error bars correspond to the mean standard
deviation.