TY - JOUR
T1 - An improved ELISA method for the detection of Salmonella typhimurium
AU - Prusak‐sochaczewski, E.
AU - Luong, J. H.T.
PY - 1989/2
Y1 - 1989/2
N2 - The applicability of enzyme‐linked immunosorbent assay (ELISA) for the detection of salmonellas in foodstuffs was investigated. Several factors affecting the sensitivity of the ELISA, such as the type of protein used for plate post‐coating, the method of antibody labelling, and accelerators for antigen‐antibody and enzyme‐substrate reactions, were studied. Labelling of the antibody with horseradish peroxidase and the use of o‐phenylenediamine as substrate in the detection system were demonstrated to be most suitable for the enzyme assay. Based on these findings, an improved ELISA method was developed for the detection of Salmonella typhimurium. The improved technique was able to detect as few as 5×104‐105 cell/ml of salmonellas, and about 24 h were required to enrich the bacteria in food samples and to perform the test. With some modifications, the ELISA assay could reach a very high level of sensitivity and provide excellent repro‐ducibility.
AB - The applicability of enzyme‐linked immunosorbent assay (ELISA) for the detection of salmonellas in foodstuffs was investigated. Several factors affecting the sensitivity of the ELISA, such as the type of protein used for plate post‐coating, the method of antibody labelling, and accelerators for antigen‐antibody and enzyme‐substrate reactions, were studied. Labelling of the antibody with horseradish peroxidase and the use of o‐phenylenediamine as substrate in the detection system were demonstrated to be most suitable for the enzyme assay. Based on these findings, an improved ELISA method was developed for the detection of Salmonella typhimurium. The improved technique was able to detect as few as 5×104‐105 cell/ml of salmonellas, and about 24 h were required to enrich the bacteria in food samples and to perform the test. With some modifications, the ELISA assay could reach a very high level of sensitivity and provide excellent repro‐ducibility.
UR - https://www.scopus.com/pages/publications/0024564943
U2 - 10.1111/j.1365-2672.1989.tb02462.x
DO - 10.1111/j.1365-2672.1989.tb02462.x
M3 - Article
C2 - 2651375
AN - SCOPUS:0024564943
SN - 0021-8847
VL - 66
SP - 127
EP - 135
JO - Journal of Applied Bacteriology
JF - Journal of Applied Bacteriology
IS - 2
ER -