What does this research mean for the field?

Lysinibacillus sp. strain GAKVM is capable of mineralizing phenol, but its specific growth rate and biodegradation efficiency decrease at higher initial phenol concentrations due to substrate inhibition. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This study aims to quantify the specific growth rate of Lysini bacillus sp. strain GAKVM when exposed to varying concentrations of phenol.

March 18, 2026Open Access

Quantifying the Particular Growth Rate of Lysinibacillus Sp. Strain Gakvm on Phenol

Key Points

This study aims to quantify the specific growth rate of Lysini bacillus sp. strain GAKVM when exposed to varying concentrations of phenol.
Evaluated five different concentrations of phenol.
Conducted experiments over 24 to 72 hours with daily sampling.
Utilized mineral salt medium at 37°C for bacterial growth.
Maximum growth achieved at 7.5µm phenol concentration with a specific growth rate of 0.84.
At 22.5µm phenol concentration, the growth rate reduced to 0.495.
Higher phenol concentrations inhibited both growth and biodegradation.

Abstract

The Lysini bacillus sp. strain GAKVM (MT476862) was mineralized at the maximum concentration 67.5µm within 72hrs in a mineral salt medium at 370C. The effect of initial phenol concentration on the biodegradation rate was studied using five different concentrations of phenol. Experiments performed for the time duration of 24hours-72hours while daily samples were withdrawn. Results of the specific growth rate in the initial concentrations presented increase in phenol concentration that amounts to decrease in the biodegradation and growth due to the inhibitory action of phenol. The bacteria showed efficient specific growth rate in 7.5µm and 22.5 µm and the specific growth activity of Lysini bacillus sp strain GAKVM at phenol concentration 7.5µm is calculated as 0.84 and those in 22.5µm phenol concentration is 0.495.

Quantifying the Particular Growth Rate of Lysinibacillus Sp. Strain Gakvm on Phenol

Key Points

Abstract

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