AOAC GFA Stakeholder Program Meeting Book (March 15, 2023)

Recovery and precision ELISA kit B

Analyst 1

Analyst 2

Analyst 3

ppm Sesame

Sample ID

RSD ppm f

% Rec. g

% Rec. g

% Rec. g

RSD ppm f

Avg. OD ± SD e

RSD ppm f

Avg. OD ± SD e

Avg. OD ± SD e

Muffin b

M-0 d

0 5

0.12 ± 0.01 1.55 ± 0.07 1.96 ± 0.52 3.28 ± 0.09 0.14 ± 0.01 1.22 ± 0.03 2.04 ± 0.07 3.24 ± 0.24 0.11 ± 0.003 1.35 ± 0.06 1.90 ± 0.03 2.70 ± 0.13 0.28 ± 0.06 1.28 ± 0.09 1.97 ± 0.16 2.70 ± 0.21

0.11 ± 0.01 1.21 ± 0.14 2.18 ± 0.11 2.86 ± 0.20 0.11 ± 0.002 1.10 ± 0.06 1.76 ± 0.09 2.81 ± 0.08 0.10 ± 0.01 1.24 ± 0.10 1.93 ± 0.10 2.85 ± 0.03 0.13 ± 0.04 0.97 ± 0.06 1.60 ± 0.06 2.52 ± 0.05

0.19 ± 0.01 1.22 ± 0.07 2.10 ± 0.12 3.03 ± 0.14 0.21 ± 0.003 1.03 ± 0.11 1.81 ± 0.02 2.74 ± 0.12 0.24 ± 0.05 1.65 ± 0.04 2.54 ± 0.05 3.40 ± 0.07 0.18 ± 0.01 1.37 ± 0.05 2.05 ± 0.06 2.99 ± 0.03

11.0 16.8 54.8 i

7.2

7.1

M-5

4.4

221 168 183

10.7

144 210 137

4.7 5.3 4.3

142 217 215

21.0 i 41.0 i

21.7 i 64.4 i

M-10 M-30

10 30

25.1

4.7 6.7

2.7

Spice Mix

S-0 d

0 5

7.6

6.3

5.7

S-5

1.8 3.4 7.1

153 181 177

4.8 4.8 2.8

127 134 131

9.1 0.9 4.2

114 151 156

18.1 53.0 i

13.4 39.3 i

15.1 46.8 i

S-10 S-30

10 30

Hummus c

S-0 d

0 5

(Day 1)

12.1 25.6 i 65.6 i

8.4

10.1 24.7 i 54.4 i

H-5

4.3 1.5 4.6

242 256 219

7.6 4.8 1.1

168 170 127

2.4 1.8 1.9

201 247 181

17.0 38.1 i

H-10 H-30

10 30

Hummus c

S-0 d

0 5

(Day 7)

12.5 25.2 i 44.6 i

7.4

8.9

H-5

5.6 6.9 7.2

250 252 149

5.4 3.2 1.8

147 156 128

3.1 2.7 1.1

178 190 160

15.6 38.5 i

19.0 48.1 i

H-10 H-30

10 30

RSD <15%, except one sample by one analyst (25%). Recovery- high recovery was observed compared to ELISA kit A for all samples, limited to 256%. Hummus day 1 samples showed the highest recovery of all. Sesame recovery from spice mix was better compared to ELISA kit A.

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