Streptococcus agalactiae|185941 |BNCC

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Streptococcus agalactiae

Culture medium	BNCC352252
Description	Brain Heart Infusion Agar
Composition	Beef Brain Infusion Powder:4.0g, Beef Heart Infusion Powder:4.0g, Peptone:5.0g, Casein Peptone:16.0g, NaCl:5.0g, Glucose:2.0g, Na₂HPO₄:2.5g, Agar:13.5g, pH:7.4±0.2(25℃)
Growth conditions	37 ℃; 24-48 hours; aerobic;
Subculture procedure	① Prepare 1-2 of the above plates; ② Open the safety cabinet, burn the top with an alcohol lamp, quickly drip sterile water to break it, and then use tweezers to crush it; ③ Take 0.5mL of sterile water and transfer it into a freeze-drying tube. After fully dissolving the bacterial powder, transfer it into two plates, each Agar plate containing about 200 μ L, and apply evenly; ④ Place the petri dish under the above cultivation conditions for cultivation, and once the bacterial strain grows, it can be used.
Storage conditions	2-8 ℃
Safety level	2
morphology	Colony diameter: 0.5–1 mm, circular, regular margin, opaque, grayish-white on the obverse and yellow on the reverse, convex in the center, smooth and shiny surface, moist texture, easily picked, non‑pigmented, Gram‑positive (bluish‑purple), coccus, purity: pure.
Sharing mode	Public welfare sharing