Saccharomyces cerevisiae|BNCC336671 |BNCC

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Saccharomyces cerevisiae

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	28 ℃;18-24h; Aerobic
Storage conditions	2-8 ℃
morphology	Size: 1-2mm Shape: Round Edge: Neat Transparency: Opaque Color: Milky White Protuberance: Middle Protuberance Surface: Smooth and Bright Texture: Wet and Easy to Stir
application	For alcoholic fermentation
Sharing mode	Public welfare sharing

1.Description

1. Name: Saccharomyces cerevisiae

2. BNCC No.:336671

3. Biosafety level : 4

2.Storage conditions:

Storage of freezed dried ampoule and agar slant at 2°C to 8°C

3. Growth Conditions

1. SDA medium: glucose 20g, peptone (casein trypsin digest, gastric enzyme digest of animal tissue) 10g, agar 15g, distilled water 1.0L,pH 5.6±0.2. Sterilization at 121 ℃ for 15min.

2. Atmosphere: aerobic

3, Temperature: 28 ℃,24h

4.Notes:

1.Normal culturing time, 24-48hours for bacterial, 72 hours for yeast, 5-7days for mould, 7-10days for fungal.

2.Agar slant shall be inoculated asap, and do not keep the storage for more than 3 months.

3.Please recover the strains in strict accordance with this instruction, otherwise the replacement of the strain are not be available in case of viability loss caused by different media or growth conditions.

4.Waste generated from the handling process should be discarded after high-pressure sterilization.

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