Penicillium flavum|357862 |BNCC

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Penicillium chrysogenum

Subculture procedure	① Prepare 1 test tube containing 5-10 mL of liquid culture medium and 2 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 Transfer 0.5mL of liquid culture medium into a freeze-drying tube, dissolve it thoroughly, and then transfer it back into the liquid test tube, mixing well; ④ Transfer 0.2mL of bacterial suspension into a Agar plate, apply evenly, and repeat twice to obtain two plates; ⑤ Place all liquid test tubes and plates under the above cultivation conditions, and the bacterial strains can be used once they grow.
Growth conditions	24 ° C; 3-5 days; aerobic
Storage conditions	2-8 ℃
Safety level	1
morphology	Small filamentous fungi have obvious colonies on PDA medium, with white hyphae in the early stage and light green spores in the later stage. The agar plate is wrinkled
Sharing mode	Public welfare sharing

Penicillium chrysogenum

Storage conditions : 2~8 ℃

No. : 357862

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 plate 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.

Growth conditions：28 ℃, aerobic, PDA. PDA: potato boiling solution 1.0L, glucose 20.0g, agar 15.0g (not included in liquid medium), natural pH. Sterilization at 121 ℃ for 15min. Potato boiling solution: weigh 200g of peeled potato pieces, boil in boiling water for 30min, and collect filtrate to a constant volume of 1.0L.

Recovery steps:

(1) Prepare 1-2 of above mentioned 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) The plate was cultured under the above-mentioned culture conditions, and the bacteria were grown and used.

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

Item	test results
viability	good viability， in 7days strain layer is obvious
colony morphology	small filamentous fungi have obvious colonies on PDA culture medium. the mycelium of the plate layer is white in the early stage, light green spores are produced in the late stage, and the plate folds
Conclusion	good viability，no abnormal colony morphology, qualified & nbsp;

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