Brewing yeast|336054 |BNCC

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Saccharomyces cerevisiae Hansen

Subculture procedure	① Prepare 1-2 of the above plates; ② Open the safety cabinet and follow the arrow indication on the cap of the penicillin bottle to open the strain and reconstitution solution; ③ Add 1mL of the complex solution to the Freeze dried pellet, cover with a rubber stopper, and shake to dissolve; ④ Take 200 μ L of bacterial suspension separately and inject it into two plates, apply evenly; ⑤ Place the petri dish under the above cultivation conditions for cultivation, and once the bacterial strain grows, it can be used.
Growth conditions	30 ℃; 18-24h; aerobic;
Storage conditions	2-8 ℃
Safety level	1
morphology	The colony diameter is 0.5-1mm, circular, with neat edges, opaque, white on the front, raised in the middle, smooth and bright on the surface, moist texture, easy to pick up, G+(blue purple), cocci, purity: pure
Sharing mode	Public welfare sharing

Saccharomyces cerevisiae

Storage conditions: 2~8 ℃

No.: 336054

product format: freeze dried, 200ul

Validity: 6 years

Bioafety 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.

Culture conditions: 28 ℃, aerobic, YM medium, 24-48h. YM medium: yeast extract 3.0g; Malt extract 3.0g; Glucose 10.0g; Protein block 5.0g; Agar 20.0g; Distilled water 1000 ml;pH 6.2 +/- 0.2, 121 ℃,15min.

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 result
Viability:	good viabiligy. in 40 hours the liquid medium is turbid, and the strain layer is obvious o plate;colony is typical on marked plate
Colony morphology: (pictured above)	size: 1-2mm; Shape: round; Edge: neat; Transparency: opaque color: milky white; Protuberance: middle bulge; Surface: smooth; Texture: moist and viscous
Conclusion:	good recovery, no abnormal colony morphology, qualified

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