Produce Degradation Pathways and Prevention

Attachment of Bacterial Human Pathogens on Fruit and Vegetable Surfaces 429

TABLE 13.4

Relative Surface Charge for Salmonella

spp. Determined by Electrostatic

Interaction Chromatography

Serovar/strain (–) (+) Source

Stanley HO558 21.48 4.10 Alfalfa sprout

Poona RM2350 33.71 1.82 Cantaloupe

Saphra 97A3312 50.00 6.08 Cantaloupe

Note:For experimental details see Ukuku, D.O. and

Fett, W.F., J. Food Prot., 65, 1093, 2002.

TABLE 13.5

Relative Surface Charge for Escherichia

coli spp. Determined by Electrostatic

Interaction Chromatography

Strain (–) (+) Source

ATCC 25922 1.62 0.12 Type strain

O157:H7 (Odwala) 1.48 0.18 Apple juice

O157:H7 (Oklahoma) 1.50 0.16 Apple juice

Note:For experimental details see Ukuku, D.O. and

Fett, W.F., J. Food Prot., 65, 1093, 2002.

TABLE 13.6

Relative Surface Charge for Listeria

monocytogenes Determined by

Electrostatic Interaction

Chromatography

Strain (–) (+) Source

Scott A 38.06 0.40 Clinical isolate

CCR1-L-G 37.68 0.20 Food isolate

ATCC 151313 38.11 0.32 Type strain

H7778 37.47 0.50 Food isolate

Note:For experimental details see Ukuku, D.O.

and Fett, W.F., J. Food Prot., 65, 1093, 2002.