Journal of Food Quality / 2021 / Article / Tab 4

Research Article

Isolation and Characterization of Gram-Negative Bacterial Species from Pasteurized Dairy Products: Potential Risk to Consumer Health

Table 4

Antibiotic disk diffusion sensitivity test results.

IsolateAntibiotic
ETetGChlCipNAmpA/CTMSCef

E. coli®RSS#RSSRSI
S. aureus®®RSS#SSSRSSI
1RSRSISRNDNDND
3RRS#RRSRSSR
4RNDNDNDNDNDNDNDSR
5RSRSISRRSI
6RSS#SISRRRR
7RSISISRRSI
9RSS#SISRNDNDND
12RSISISRISS
14RSRSISRRIR
15RSS#SISRISR
20RSISISRNDNDND
24RSS#SISRNDNDND

E: erythromycin, Tet: tetracycline, G: gentamycin, Chl: chloramphenicol, Cip: ciprofloxacin, N: nitrofurantoin, Amp: ampicillin, A/C: amoxicillin/clavulanate, TMS: trimethoprim-sulfamethoxazole, Cef: ceftriaxone, ND: not determined, R: resistant, S: susceptible, and I: intermediate. Inhibition zone diameters were measured in millimeters. ®(ATCC 25922); ®®(ATCC 25923). Isolate 14 is from the same source as isolate 1. Highly resistant, no inhibition zone (0.00 mm). #The CLSI guideline states in vitro activity does not correlate with in vivo activity.