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D.C.A (LEIFSON,S)Agar 500 gr
DA13127031 · published 2017-08-21 · completed 2017-08-22 · from Medix Distribution S.R.L. (Constanta)
209 leiawarded value
—estimated value
24931250-6CPV code
The quantity is not published in the open data. The MS/SEAP export has only the title and value; quantity and unit price appear only in the purchase's SICAP record, which you can look up on e-licitatie.ro.
Description from SEAP
.C.A.(Desoxycholate Citrate Agar)LAB 29DescriptionThis is Leifson’s original formulation of this selective medium for the isolation of Salmonella spp. and Shigella spp. from faeces andenvironmental samples. It has approximately half the quantity of inhibitors used in the Hynes modification. The medium uses sodiumcitrate and sodium desoxycholate as inhibitors. Sodium thiosulphate is the substrate for the enzyme thiosulphate reductase being brokendown to form sulphite and hydrogen sulphide. The hydrogen sulphide reacts with the ferric ions to produce a black precipitate of ferroussulphide. This gives a typical black centre to the colonies of most species of Salmonella.Typical Formula g/litreBeef Extract 5.0Balanced Peptone No. 1 5.0Lactose 10.0Sodiumcitrate 5.0Sodium thiosulphate 5.0Ferric citrate 1.0Sodium desoxycholate 2.5Neutral Red 0.025Agar No. 2 12.0Method for reconstitution