Bacillus glutamicisubtilis Type I|188057 |BNCC

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Corynebacterium glutamicum

Subculture procedure	① Prepare 1 tube containing 5–10 mL liquid medium and 2 plates; ② Open in a safety cabinet, cauterize the top with an alcohol lamp, then quickly add sterile water to shatter it; break into pieces with forceps; ③ Pipette 0.5 mL liquid medium into the freeze-dried vial, dissolve completely, then return to the liquid tube and mix thoroughly; ④ Pipette 0.2mL of bacterial suspension onto plates and spread evenly; repeat twice to obtain two plates; ⑤ Incubate all liquid tubes and plates under specified conditions until colonies emerge.
Growth conditions	37°C; 18-24h; aerobic
Storage conditions	2-8°C
Safety level	1
morphology	Size: 1-2mm Shape: Circular Edge: Neat Transparency: Opaque Color: Yellow Elevation: Central dome Surface: Bright and smooth Texture: Moist and easily lifted
Sharing mode	Public welfare sharing

Corynebacterium glutamicum

Storage conditions: 2~8 ℃

No.188057

Product format: freeze dried, 200ul

Validity: 6 years

Biosafety level : 1, handle in ultra-clean table or safety cabinet

Receiving notice: if any abnormality is found on the day of receipt, please contact the customer service within 24 hours. If it is overdue, it is deemed that the bacteria are well. The freeze dried culture shall be used up once and shall not be retained. The bacterial viability will resume after 1-2 generation of recovery and can be used normally.Handling instructions of agar slant and suspension liquid is enclosed. Please operate in strict accordance with this instruction, otherwise the replacement of bacteria are not be available in case of aberrant growth and loss of viability.

Gorwth conditions: 37 ℃, aerobic, nutrient gravy medium, 18-24h. Nutritional gravy medium: beef paste 3.0g, peptone 10.0g,NaCl 5.0g, agar 20.0g (not included in liquid medium), distilled water 1.0L,pH 7.0. Sterilization at 121 ℃ for 15min. Add 5mgMnSO4·H2O is beneficial to spore production.

Recovery steps:

(1) Prepare a test tube containing 5-10mL of liquid culture medium and 2 plates;

(2) Open it in the biosafety cabinet, heat the tip of ampoule in a flame, quickly drop sterile water to creak it, then break it with forceps;

(3) draw 0.5mL of liquid culture medium into a freeze dried ampoule, fully rehydrate and transfer the solution to the liquid test tube, mix evenly;

(4) inoculate a plate with 0.2mL of suspension liquid, repeat the step to obtain two plates;

(5) Put all the liquid test tubes and plates under the above culture conditions for cultivation, and the strains can be used when they grow.

Recovery record: According to the recovery instructions, the results of the cell recovery are reported as follows:

Item	test results
viability:	good viability, in 18-24 hours liquid medium become turbid,strain layer is obvious;colony is typical on the streaked plate
colony morphology: (above)	Size: 1-2mm Shape: Round Edge: Neat Transparency: Opaque color: yellow uplift: middle convex surface: bright and smooth texture: moist and easy to stir:
Conclusion	good viability, no abnormal colony morphology, qualified

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