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Incubate both tubes at 37 degree C for 18-24 hours, maybe several days for slower growth
Incubation times for the voges proskauer test should be exactly 48 hours because lengths longer or shorter can skew results. However, methyl red may benefit from incubating longer than 48 hours.
They must be only 24 hours old or less. Any older will give false positives or incorrect readings.
Well, within 24 hours of each other.
12 hours
Incubate both tubes at 37 degree C for 18-24 hours, maybe several days for slower growth
The usual incubation period is 12-72 hours
It is important to remember that fermentation can occur with or without the presence of oxygen, and during prolonged incubation periods, many bacteria will begin growing oxidatively on the peptone after exhausting the supplied carbohydrate. This results in neutralization of the indicator, turning it black to red due to the alkaline conditions created by ammonia production. Consequently, fermentation tubes should not be incubated over 48 hours after inoculation for this reason.
The frostfire dragon has an incubation time of 12 hours.
A storm dragon has an incubation time of 3 hours.
8 hours
the incubation period is from 2 hours to 5days, but has an average of 2-3 days
The incubation time for a rainbow dragon in DragonVale is 48 hours.
After 48 hours incubation with e coli, the TSI media will be in black in color.
12 hours
12 hours
over 9000 hours