

@conference {730,
	title = {Enhancement The Recovery of Chlorine Stressed Bacteria From Water By Using Sodium Pyruvate},
	booktitle = {International Conference Agriculture and Environment for Sustainable Development},
	year = {2015},
	month = {05/2015},
	address = {Cairo, Egypt},
	abstract = {<div class="rtejustify">This study aimed to improve the recovery of stressed bacteria from water by addition sodium pyruvate to culture media. In addition to this, to compare between the standard culture media and these media supplemented by sodium pyruvate. To achieve these aims; total bacterial counts (TBC), total coliforms (TC), fecal coliforms (FC) and fecal streptococci (FS) were detected by using both standard culture media and media supplemented by different concentrations of sodium pyruvate. Furthermore, TC, FC and FC were detected by using two methods including Multiple Tube Fermentation (MTF) and Membrane Filtration (MF). The obtained results showed that, the average of recovery value of total bacterial counts at 37 and 22oC was 34.7 and 28.7\% respectively, by using media supplemented with 0.03\% wt/vol of sodium pyruvate, While the recovery value \% increase to 54\% at 37oC, and 45\% at 22oC by using media supplemented with 0.05\% wt/vol of sodium pyruvate, On the other hand, the recovery value \% decrease to 11.6\% at 37oC, and 17.9\% at 22oC by using media supplemented with 1\% wt/vol of sodium pyruvate. Regarding to the recovery of total coliforms by using both methods MT and MTF were 54.9\% and 42.4\% respectively by using media supplemented with 0.03\% wt/vol of sodium pyruvate, While the recovery value \% increase to 59.6\% by MF method , and 48.9\% by MTF, using media supplemented with 0.05\% wt/vol of sodium pyruvate, On the other hand the recovery value \% decrease to 27.9\% by MF method , and 15\% by MTF, using media supplemented with1\% wt/vol of sodium pyruvate. The average of recovery value fecal coliforms by using presumptive and selective media were 15.4\% and 12.5\%, respectively by using media supplemented with 0.03\% wt/vol of sodium pyruvate, While the recovery value \% increase to 38\% with presumptive media, and 32\% with Selective media, using media supplemented with 0.05\% wt/vol of sodium pyruvate, On the other hand, the recovery value \% decrease to 12.5\% with presumptive media , and 12.2\% with Selective media, using media supplemented with 1\% wt/vol of sodium pyruvate. It can be concluded that, by addition sodium pyruvate increase capability for stressed bacteria recovery from water samples, these supplemented media with sodium pyruvate are necessary for reducing the threat of false negative results in natural water.<br />
\&nbsp;</div>
},
	keywords = {bacterial indicator, Chlorine stressed bacteria, sodium pyruvate, water},
	url = {http://agricultural-nrc.org/},
	author = {M. A. El-Liethy and SalmTaha M. A. Kamel M.M.},
	editor = {Salma I. M., Bkeer H. M.,}
}
