Red yeast|119738 |BNCC

Essential Information Certificate Related Products

Rhodotorula sp

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.
Growth conditions	30 ℃; 24-48 hours; aerobic
Storage conditions	2-8 ℃
Safety level	1
morphology	The colony has a diameter of 2-4 mm, appearing circular with neat edges and an opaque texture. It displays a purplish-red color on the front, with a raised center, smooth surface, and moist consistency. The bacteria are Gram-positive (staining blue-violet), cocci-shaped, and the culture is pure.
Sharing mode	Public welfare sharing

Rhodotorula sp

Storage conditions: 2~8 ℃

No. 119738

Product format: freeze dried,200ul

Validity period: 6 years

Biosafety level: 1, handle in ultra-clear 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 agar slant can be used directly. In principle, it can be used many times without contamination within the validity period, but viability will gradually decrease with time. 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.

Growth conditions : 30 ℃, aerobic, YM medium, 24-48h. YM medium: 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.

Recovery steps:
(1) Prepare 1-2 pieces of PDA plates;
(2) Sterilize the surface of test tube for the agar slant, open it in the biosafety cabinet;
(3) Cut into the pieces with aseptic inoculation hoe and inoculation shovel (see attached page). the size of square pieces is 0.5 × 0.5cm²;
(4) Lay flat the small pieces to the center of the agar plate;
(5) Put the plates under the above culture conditions, and the strains can be used when they grow.

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

item	test results
viability	good viability,in 24-48h liquid medium become turbid, obvious strain layer occurs on the plate; colony is typical on marked plate
colony morphology: (above)	size: 1-2mm ;Shape: round ; Edge: neat ; Transparency: opaque color: red ; Protuberance: middle bulge ; Surface: bright and smooth ; Texture: moist and viscous
Conclusion:	good viability, no abnormal colony morphology, qualified

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