Naslov
Influence of washing treatment on native microflora and Escherichia coli population of inoculated cantaloupes

Autori
Ukuku, Dike O. ; Piližota, Vlasta ; Sapers, Gerald M.

Izvornik
Journal of Food Safety (0149-6085) 21 (2001), 1; 31-47

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Sažetak
The influence of chlorine or hydrogen peroxide treatment on populations of Escherichia coil 25922 on the external surface of inoculated cantaloupe was investigated. Surface treatment with 70% EtOH, followed by immersion in 10^8 CFU/mL E. coli inoculum deposited an average of 4.4 log_10CFU/cm^2 cell population on the cantaloupe surface. The efficacy of washing inoculated cantaloupe was dependent on storage interval between inoculation and treatment Dipping the cantaloupes in solutions containing 1000 mg/L chlorine or 5% peroxide for 5 min, within 24 h of inoculation, caused a 2 log_10 CFU/cm^2 reduction of the indigenous surface microflora and a 3-4.0 log_10 CFU/cm^2 reduction in E. coli. The efficacy was less when the interval between inoculation and treatment exceeded 24 h. Chlorine appeared to be a better antimicrobial agent than hydrogen peroxide against E, coli ATCC 25922 inoculated on cantaloupe surfaces while hydrogen peroxide was better in reducing surface microflora of cantaloupe.

Izvorni jezik
Engleski

POVEZANOST RADA