4500
1400
4000
1200
3500
2500 2000
Enteroccus
1500
Mold and yeast
1000
E. coli
no. of bacteria
1000
3000
800 600
Enteroccus
400
Mold and yeast E. coli
200
500 0
0 02
04
06
08
01 00 1201 40 1601 80
time (minutes)
02
04
06
08
01 00 1201 40 1601 80 time (minutes)
2
170
170
20
30
123
62
42
133