Team:Newcastle/Arginine test
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(New page: ===Materials Required=== * Plate consisting of ''Bacillus subtilis'' 168 colonies. * Flame (streaking) Loop * LB media consisting arginine and ampicillin * Auto pipette * Bursen Burner * U...) |
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* Incubate the culture at 37° C with shaking. | * Incubate the culture at 37° C with shaking. | ||
* Record the pH at every 30 min interval.Use 20 ul of the culture and measure the pH using the pH measuring stick. | * Record the pH at every 30 min interval.Use 20 ul of the culture and measure the pH using the pH measuring stick. | ||
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Revision as of 14:46, 28 July 2010
Materials Required
- Plate consisting of Bacillus subtilis 168 colonies.
- Flame (streaking) Loop
- LB media consisting arginine and ampicillin
- Auto pipette
- Bursen Burner
- Universal Tube
Procedure
- Perform the experiment using aseptic technique.
- Transfer B. subtilis 168 colonies into universal tubes containing 5 ml of LB media and allowed to grow overnight at 37° C.
- Transfer 1 ml of the overnight culture to another universal tube containing 4 ml of the following media:
- Control (1) - LB media
- Control (2) - LB media with 10 mM of arginine
- Control (3) - LB media plus B. subtilis 168
- Test (1) - LB media with 10 mM of arginine plus B. subtilis 168
- Test (2) - LB media with 10 mM of arginine plus B. subtilis 168
- Incubate the culture at 37° C with shaking.
- Record the pH at every 30 min interval.Use 20 ul of the culture and measure the pH using the pH measuring stick.