| determining the potential link between irrigation water quality and the microbiological quality of onions by phenotypic and genotypic characterization of escherichia coli isolates. | the potential transfer of human pathogenic bacteria present in irrigation water onto fresh produce was investigated, because surface water sources used for irrigation purposes in south africa have increasingly been reported to be contaminated with enteric bacterial pathogens. a microbiological analysis was performed of a selected river in limpopo province, south africa, that is often contaminated with raw sewage from municipal sewage works and overhead irrigated onions produced on a commercial f ... | 2015 | 25836387 |