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Page de garde - Université de Tlemcen

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- CHAPITRE VI : ACTIVITE ANTIBACTERIENNE -<br />

…………………………………………………………………………………………………...<br />

- Milieu <strong>de</strong> MUELLER-HINTON : (g/l) pH = 7.4<br />

Macération <strong>de</strong> vian<strong>de</strong> <strong>de</strong> bœuf 300ml<br />

Hydrolysat 17.5g<br />

Amidon 1.5g<br />

Agar 10g<br />

- Milieu <strong>de</strong> CHAPMAN : (g/l) pH = 7.6 – 7.8<br />

Peptone 11g<br />

Extrait <strong>de</strong> vian<strong>de</strong> 1g<br />

NaCl 75g<br />

Mannitol 10g<br />

Agar 15g<br />

Rouge <strong>de</strong> phénol 0.025g<br />

XIII.3.1. Coloration <strong>de</strong> gram :<br />

étudiées.<br />

Durant notre travail et suite à leurs i<strong>de</strong>ntifications, 14 souches bactériennes seront<br />

Tableau 22 : I<strong>de</strong>ntification <strong>de</strong>s bactéries<br />

Référence Bactéries Coloration <strong>de</strong> Gram Type <strong>de</strong> Gram<br />

Souches <strong>de</strong> référence<br />

25923 Staphylococus aureus Violette Cocci Gram (+)<br />

27853 Pseudomonas aeruginosa Rose Bacille Gram (-)<br />

25922 Escherichia coli Rose Bacille Gram (-)<br />

29213<br />

29619 Streptococus pneumoniae Violette Cocci Gram (+)<br />

43300 Staphylococus aureus Violette Cocci Gram (+)<br />

25913<br />

43866 Staphylococus aureus Violette Cocci Gram (+)<br />

Souches sauvages (Prélèvement)<br />

Sal* Salmonela typhi Rose Bacille Gram (-)<br />

P1 Pseudomonas aeruginosa Rose Bacille Gram (-)<br />

S2 Staphylococus aureus Violette Cocci Gram (+)<br />

S3 Staphylococus aureus Violette Cocci Gram (+)<br />

S4 Staphylococus aureus Violette Cocci Gram (+)<br />

S5 Staphylococus aureus Violette Cocci Gram (+)<br />

112

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