|
ISS
820 East 20th Street
Cookeville, TN 38501 USA
931 526 1106
Bob@sproutnet.com
中文版
En espaņol
| |
Comparison of chemical
treatments to kill Salmonella on alfalfa seeds destined for sprout production.
Int J Food Microbiol 1997 Mar 3;34(3):329-33
Beuchat LR.
Department of Food Science and Technology, University of Georgia, Griffin
30223-1797, USA.
Outbreaks of salmonellosis in the US, Canada and Finland linked to alfalfa
sprouts have been attributed to Salmonella stanley in 1995 and Salmonella
newport in 1996. This study was undertaken to compare the efficacy of chemical
treatments in killing a mixture of five Salmonella serovars inoculated onto
alfalfa seeds. Solutions containing calcium hypochlorite or sodium hypochlorite
at concentrations of 1800 and 2000 micrograms/ml active (available) chlorine
respectively, as well as 6% hydrogen peroxide or 80% ethanol were effective in
reducing Salmonella populations by more than 1000 fold. However, viable
Salmonella cells were detected in seeds treated for 10 min in these solutions.
The inaccessibility of Salmonella cells in crevices and between the cotyledon
and testa of seeds to lethal concentrations of these chemicals are thought to be
the reason for the lack of effectiveness.
|
