Loading…
Microbiologist.in
Pharma QC microbiology, in your pocket
Generations, generation time and µ from two counts.
Note
Generations n = log₂(Nt/N₀) = 10; generation time g = t/n = 30 min; specific growth rate µ = ln(Nt/N₀)/t = 1.386 per hour (doubling time 30 min).
Reference: Exponential growth: N = N₀ × 2ⁿ. Always follow your approved SOP and current pharmacopoeia.
n = log₂(Nt/N₀); g = t/n; µ = ln(Nt/N₀)/t
10³ to 1.024 × 10⁶ cells/mL in 5 h → 10 generations, g = 30 min
Applies to the exponential phase only; use counts taken within it.