Agar+Antibiotics

=Antibiotics properties= Toxic to bacteria but not to fungi. Antibiotics thermo-resistant to autoclaving are used, e.g. Gentamycin. Other antibiotics (e.g. penicyllin) must be added at agar cooling, between 40 and 60 degree. Dosage is specific to antibiotic. Gram-positive and Gram-negative antibiotics may be combined.

=Antibiotics classes=
 * **Beta-lactam antibiotic**
 * **[|Penicillin]** : usually against Gram-positive bacteria. 0.5 g/l (see [|this link])
 * **[|Cephalosporine]**: predominantly against Gram-positive bacteria, and successive generations increased activity against Gram-negative bacteria.
 * **[|Cefixime]** : 0.05 mg/l. Non-autoclavable, add at 50C (see [|this link]). Third generation (Gram-postive + Gram-negative), bactericidal (store 15 - 30C). Liquid suspension active 15 days and maybe refrigerated
 * **[|Ampicillin]**: 0.1 mg/l. Non-autoclavable (see [|this link]). Only effective against Gram-positive.


 * **Aminoglycoside**
 * **[|Gentamycin] :** Thermoresistant to autoclaving. Against Gram-negative. 0.05g/L.
 * **[|Streptomycin]** : 0.3 mg/l. Non-autoclavable (see [|this link]). Liquid spray of 30 mg/l. Broad-spectrum antibiotic, inhibits both Gram-positive and Gram-negative bacteria. 0.5 g/L (see [|this link])
 * **Dihydrostreptomycin** : 50 mg/l. Autoclavable (see [|this link]).


 * **[|Tetracycline]**: 12 mg/l (see [|this link]). broad-spectrum antibiotics. light sensitive. (store 15- 30C)
 * **Doxycycline Monohydrate :** 2 mg/l (see [|this link])
 * **[|Chlortetracycline]** : 2 mg/l.


 * **Others**
 * **[|Azithromycine]** : 2 mg/l (see this link). more effective against certain Gram-negative bacteria.

=References=