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培養基配方

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Anaerobic Egg Yolk Agar

[所屬分類:培養基配方] [發布時間:2021-11-1] [發布人:網站管理員2] [閱讀次數:] [返回]

山東拓普生物工(gong)程有限(xian)公司培養(yang)基配方 //ljxinglong.com

Composition per liter:

Agar ..................................................................20.0g

Proteose peptone...............................................20.0g

Pancreatic digest of casein..................................5.0g

NaCl....................................................................5.0g

Yeast extract........................................................5.0g

Egg yolk emulsion, 50%............................... 20.0mL

pH 7.0 ± 0.2 at 25°C

Egg Yolk Emulsion, 50%:

Composition per 20.0mL:

Chicken egg yolks....................................................2

NaCl (0.9% solution) .................................... 10.0mL

Preparation of Egg Yolk Emulsion, 50%:

Soak eggs with 1:100 dilution of saturated mercuric

chloride solution for 1 min. Crack eggs and separate

yolks from whites. Measure 10.0mL of egg yolk

emulsion and add to 10.0mL of 0.9% NaCl solution.

Mix thoroughly. Filter sterilize. Warm to 45°–50°C.

Preparation of Medium: Add components, ex

cept egg yolk emulsion, to distilled/deionized water

and bring volume to 980.0mL. Mix thoroughly. Gen

tly heat and bring to boiling. Autoclave for 15 min at

15 psi pressure–121°C. Cool to 45°–50°C. Aseptical

ly add sterile egg yolk emulsion. Mix thoroughly.

Pour into sterile Petri dishes. Allow plates to dry at

35°C for 24 hr.

Use: For the cultivation of Yersinia enterocolitica.

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