Saccharomyces cerevisiae Hansen|BNCC336023 |BNCC

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Saccharomyces cerevisiae Hansen

Culture medium	YM medium (YM): yeast extract 3.0g, malt extract 3.0g, glucose 10.0g, peptone 5.0g, agar 20.0g (not included in liquid medium), distilled water 1.0L,pH 6.2±0.2. Sterilization at 121 ℃ for 15min.
Subculture procedure	(1) Prepare a test tube containing 5~10mL of liquid medium and 2 plates; (2) Open it in the safety 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.
Growth conditions	30 ℃;24-48h; Aerobic;
Storage conditions	2-8 ℃
morphology	Size: 1-2mm Shape: round Edge: neat Transparency: Opacity Color: milky white Protuberance: Middle bulge Surface: bright and smooth Texture: moist and easy to stir up
application	Yeast for Liquor and Alcohol
Sharing mode	Public welfare sharing

Saccharomyces cerevisiae

storage conditions: 2~8 ℃

number: 336023

product format: freeze dried, 200ul

shelf life: 24 months

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. 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:25-28 ℃, aerobic, YM medium. 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 1-2 YM plates;
(2)Open it in the biosafety cabinet, sterilize of the ampoule, heat the tip in a flame, quickly drop sterile water to creak it, then break it with forceps;
(3) draw 0.5ml of sterile water into the freeze dried ampoule, make it fully dissolved, and distribute the solution to the plates well in 200ul/plate;
(4) Put the plates under the above culture conditions for cultivation for 24-48 hours.

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

item	test result
Viability:	good viability. in 40 hours YM plate colony is obvious
colony morphology	Size: General; color: milky white; shape: round; edge: neat; wet and smooth: bright and Opacity ; Protuberance: Bulge
Conclusion:	good recovery, and colony morphology is not abnormal, completely consistent with the above figure, qualified

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