Virginiamycin is a member of the streptogramin group of antibiotics. It’s a combination of two water-insoluble peptolide antimicrobials pristinamycin IIA (virginiamycin M1; factor M1) and virginiamycin S1 (factor S). Virginiamycin is produced by the bacteria Streptomyces virginiae, and pristinamycin by Streptomyces pristina spirales. These compounds act together in synergy and are bactericidal against a wide range of organisms including staphylococci, streptococci and enterococci. Virginiamycin has also shown to induce growth promotion when added at low levels in animal feeds.
The virginiamycin ELISA is used for the quantitative analysis of virginamycin residues in urine samples. The kit uses a polyclonal rabbit antibody which shows the following cross-reactivities: virginiamycin (100%), spiramycin (<0.01%), tylosin (<0.01%), zinc bacitracin (<0.01%), neomycin (<0.01%), chlortetracycline (<0.01%), oxytetracycline (<0.01%) and olaquindox (<0.01%).
The limit of detection (LOD) is 13.9 ng/g for urine samples (dilution).
Detailed information of this ELISA is given in the Product Information Sheet.
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