Table 2.
Log10-mean concentrations and standard deviations (SDs) of the log10 transformed concentrations of Escherichia coli (EC), enterococci (ENT), and GenBac3 per 100 cm2
| Produce type | Mean surface area, cm2 (SD) | Log10-mean MPN EC per 100 cm2 (SD) | Log10-mean MPN ENT per 100 cm2 (SD) | Log10-mean GenBac3 copies per 100 cm2 (SD) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Overall | Retail | Wholesale | Overall | Retail | Wholesale | Overall | Retail | Wholesale | ||
| Carrot | 190 (39) | 2.68 (0.62) | 2.76 (0.64) | 2.60 (0.62) | 2.53 (0.77) | 2.90 (0.87) | 2.16 (0.43) | 4.19 (0.42) | 4.08 (0.32) | 4.41 (0.53) |
| Eggplant | 405 (68) | 2.27 (1.07) | 2.52 (0.93) | 2.03 (1.18) | 3.38 (0.66) | 3.58 (0.69) | 3.17 (0.59) | 4.47 (0.68) | 4.63 (0.77) | 4.14 (0.26) |
| Red Amaranth | 990 (380) | 1.85 (1.05) | 2.01 (0.55) | 1.69 (1.40) | 2.48 (0.74) | 2.32 (0.51) | 2.63 (0.92) | 4.04 (0.55) | 4.26 (0.53) | 3.60 (0.27) |
| Tomato* | 72 (26) | 0.87 (0.88) | 1.42 (0.95) | 0.32 (0.19) | 2.50 (0.68) | 2.82 (0.74) | 2.19 (0.45) | 4.16 (0.63) | 4.41 (0.59) | 3.66 (0.37) |
Log10-means are reported overall and stratified by market type (retail vs. wholesale markets). Means and SDs of estimated item surface area by produce type.
*
Fifty-four percent of tomato rinse samples did not have EC detected and 50% did not have ENT detected; these samples have nonzero values assigned for analysis purposes.