RETRACTED ARTICLE: Detection of bacterial endotoxin in drinking tap and bottled water in Kuwait

Abstract

This study was carried out to measure and compare the concentration of bacterial endotoxin in a variety of samples from drinking tap and bottled water available in Kuwait by using the Limulus Amoebocyte lysate test. A total of 29 samples were tested. Samples were collected from a variety of locations throughout the six governorates of Kuwait and 23 brands of local and imported bottled water samples were collected from the local market. The concentration of bacterial endotoxin was measured by using the standard Limulus Amoebocyte lysate test, gel clot method. This study showed that measured endotoxin concentrations in tap drinking water varied from 2.4 to 33.8 EU/ml with the average endotoxin concentration of 14.2 EU/ml. While the results of endotoxin concentrations in the bottled water were <0.03 to 20.1 EU/ml with an average of 1.96 EU/ml. The average concentration of endotoxin in bottled water is 13.5 % of the average concentration of endotoxin in tap drinking water. This experimental investigation has proved that drinking bottled water has less endotoxin as compared to tap water in Kuwait. It is also demonstrated that the endotoxin concentration did not exceed the acceptable level in drinking tap water.

Microbiological assessment of bottled water brands in the Bulawayo market, Zimbabwe

“…Failure to detect feacal/thermotolerant coliforms and a very low incidence of E. coli in imported bottled water samples tested may mean that the samples are free from feacal contamination and that the bottled water may be microbially safe for consumption by the public (Abdulraheem et al, 2012;Ahmad and Bajahlan, 2009;Al-Omran et al, 2013).…”

The Utilization of Quality Control Chart to Examine the Chemical Properties and Bacterial Water in Al-Dlail Area in the Zarqa Governorate

“…Semerjian (2011) investigated the levels of physicochemical of water then compared the results with Lebanese institution standards for bottled water. Abdulraheem, et al, (2012) measured and compared bacterial concentration of endotoxin in a variety of samples of tap and bottled water in Kuwait by using the Limulus Amoebocyte lysate test. They found that the drinking bottled water has less endotoxin compared to the tap water.…”