Fig. 3. Distribution of 60-day-old ewe milk cheeses in the plane defined by principal
components 1 and 2 of Principal Component Analysis in Fig. 2. Ewe milk cheeses made
with Clostridium tyrobutyricum CECT 4011 ( ), with Clostridium tyrobutyricum INIA 68
( ), with Clostridium butyricum CECT 361 ( ), with Clostridium beijerinckii INIA 63 ( ),
or with Clostridium sporogenes INIA 71 ( ), and control cheese, only made with mesophilic
starter ( ).