Month Purification time (hours) E. coli (MPN/100g FIL)
 

 

Mussels parasitized with Marteilia spp. Marteilia-free mussels
May 0 (BC) 340 40
0 (PC) 490 700 310 330
12 140 330 40 110
24 40 130 20 20
36 50 80 <18 20
48 <18 50 <18 70
70 <18 <18 <18 <18
  0 (BC) <18 <18
June 0 (PC) 9200 16000 9200 16000

 

12 5400 9200 1700 16000

 

24 340 1700 220 490

 

36 330 490 270 330

 

48 130 170 80 130

 

70 110 140 110 170
  0 (BC) <18 <18
October 0 (PC) 330 490 170 460

 

12 230 790 20 110

 

24 <18 <18 20 50

 

36 <18 <18 <18 <18

 

48 20 50 20 20

 

70 <18 <18 <18 <18
BC = before contamination; PC = post contamination
Table 2: Results of microbiological analyses (E. coli) performed on parasitized and parasite-free mussels (M. galloprovincialis) at different purification times.