AOAC-RI ERP Book Micro Jan 19 2017

Table 3. Reference Method Testing Results for Spinach Matrix (200 g Spinach Analyzed via the FDA BAM Ch. 4A)

Sample Number

Inoculum Level CT-SMAC #1 CT-SMAC #2 Rainbow

O Serology

H Serology

VITEK Confirmation

+ = + + + = + = + + = + = + = = = = = = + + + + + = = = = =

+ = + + + = + = + + = + = + = = = = = = + + + + + = = = = =

+ = + + + = + = + + = + = + = = = = = = + + + + + = = = = =

+ = + + + = + = + + = + = + = = = = = = + + + + + = = = = =

+

E. coli O157

+ = + + + = + = + + = + = + = = = = = = + + + + + = = = = =

1 2 3 4 5 6 7 8 9

LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW HIGH HIGH HIGH HIGH HIGH

+ + +

E. coli O157 E. coli O157 E. coli O157

+

E. coli O157

+ +

E. coli O157 E. coli O157

10 11 12 13 14 15 16 17 18 19 20

+

E. coli O157

+

E. coli O157

+ + + + +

E. coli O157 E. coli O157 E. coli O157 E. coli O157 E. coli O157

1 2 3 4 5 1 2 3 4 5

UNINOC UNINOC UNINOC UNINOC UNINOC

CONFIDENTIAL INFORMATION Page 8 of 17