The aerobic colony counts (ACC) and total and faecal coliforms (TC and FC) were detected in retail packs of ready-to-use sliced carrots produced by four different manufacturers. High values of FC, found in 65% of the samples, demonstrated the marginal quality of these products. In order to identify the sites of major contamination, carrot samples were taken during various phases of the processing of ready-to-use sliced carrots from a semi-industrialized production plant. Washing with chlorinated water (free chlorine level of 20 mg/l) with a contact time of 20 min did not change the ACC and the microbial facies already present in the vegetables before processing, but lowered the quantity of coliforms. However, these organisms increased in the following cutting phase. The Enterobacteriaceae found in this study are common in soil and water and do not necessarily represent a public health concern.
Bacteriological Survey on Ready-to-use Sliced Carrots
TORRIANI, Sandra;
1994-01-01
Abstract
The aerobic colony counts (ACC) and total and faecal coliforms (TC and FC) were detected in retail packs of ready-to-use sliced carrots produced by four different manufacturers. High values of FC, found in 65% of the samples, demonstrated the marginal quality of these products. In order to identify the sites of major contamination, carrot samples were taken during various phases of the processing of ready-to-use sliced carrots from a semi-industrialized production plant. Washing with chlorinated water (free chlorine level of 20 mg/l) with a contact time of 20 min did not change the ACC and the microbial facies already present in the vegetables before processing, but lowered the quantity of coliforms. However, these organisms increased in the following cutting phase. The Enterobacteriaceae found in this study are common in soil and water and do not necessarily represent a public health concern.
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