These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Detection of Escherichia coli O157:H7 using chicken immunoglobulin Y.
    Author: Sunwoo HH, Wang WW, Sim JS.
    Journal: Immunol Lett; 2006 Aug 15; 106(2):191-3. PubMed ID: 16781781.
    Abstract:
    A sandwich ELISA technique was examined to detect Escherichia coli O157:H7 using chicken anti-E. coli O157:H7 IgY as the capture-antibody and an anti-E. coli O157 mouse mAb conjugated with biotin as the detection antibody. The anti-E. coli O157:H7 IgY was harvested from eggs laid by hens (23 weeks of age, Single Comb White Leghorn) immunized with formalin-killed E. coli O157:H7. The IgY was purified by water dilution methods and gel chromatography on Sephacryl S-300 followed by ammonium sulfate precipitation. The sensitivity (CFU/ml) of sandwich ELISA for the E. coli O157:H7 was repeatedly examined with 10 replicates of each sample and a standard curve was plotted. The sandwich ELISA can detect as low as 40CFU/ml of E. coli O157:H7. The data suggest that chicken IgY-based sandwich ELISA provides a reliable, inexpensive and sensitive assay for the detection of the food-borne pathogen E. coli O157:H7.
    [Abstract] [Full Text] [Related] [New Search]