PMID- 10414366 OWN - NLM STAT- MEDLINE DCOM- 19990902 LR - 20190831 IS - 0378-1135 (Print) IS - 0378-1135 (Linking) VI - 67 IP - 2 DP - 1999 Jun 15 TI - Development and evaluation of an immunomagnetic separation-ELISA for the detection of Staphylococcus aureus thermostable nuclease in composite milk. PG - 113-25 AB - An ELISA method based on monodisperse magnetic beads was developed for the detection of Staphylococcus aureus thermostable nuclease (TNase) in composite milk, wherein S. aureus TNase is captured by magnetic beads coated with monoclonal antibodies directed against TNase and subsequently detected by an enzyme-labelled MAb against the same antigen. Sensitivity of the test was approximately 1 ng TNase, which corresponds to the amount of TNase produced and secreted by approximately 10(5) S. aureus per ml. The Immuno Magnetic Separation (IMS)-ELISA detected TNase in samples from which no S. aureus could be demonstrated on culture. The total test time is 3 h and can be performed either on preserved or fresh milk. The method may be automated. FAU - Yazdankhah, S P AU - Yazdankhah SP AD - Department of Pharmacology, Microbiology and Food Hygiene, Norwegian College of Veterinary Medicine, Oslo. siamak.p.yazdankhah@veths.no FAU - Solverod, L AU - Solverod L FAU - Simonsen, S AU - Simonsen S FAU - Olsen, E AU - Olsen E LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Vet Microbiol JT - Veterinary microbiology JID - 7705469 RN - 0 (Antibodies, Monoclonal) RN - 0 (Coloring Agents) RN - 15XUH0X66N (Tolonium Chloride) RN - EC 3.1.31.1 (Micrococcal Nuclease) SB - IM MH - Animals MH - Antibodies, Monoclonal MH - Cattle MH - Coloring Agents/chemistry MH - Enzyme-Linked Immunosorbent Assay/methods/veterinary MH - Female MH - Immunomagnetic Separation/methods/veterinary MH - Mastitis, Bovine/*diagnosis/immunology MH - Micrococcal Nuclease/analysis/chemistry MH - Microspheres MH - Milk/microbiology MH - Sensitivity and Specificity MH - Staphylococcal Infections/diagnosis/immunology/*veterinary MH - Staphylococcus aureus/immunology/*isolation & purification MH - Tolonium Chloride/chemistry EDAT- 1999/07/22 00:00 MHDA- 1999/07/22 00:01 CRDT- 1999/07/22 00:00 PHST- 1999/07/22 00:00 [pubmed] PHST- 1999/07/22 00:01 [medline] PHST- 1999/07/22 00:00 [entrez] AID - S0378113599000358 [pii] AID - 10.1016/s0378-1135(99)00035-8 [doi] PST - ppublish SO - Vet Microbiol. 1999 Jun 15;67(2):113-25. doi: 10.1016/s0378-1135(99)00035-8.