Lysine production from hydrocarbon by Micrococcus varians 2Fa

Area of Science:

• Microbiology
• Biotechnology
• Biochemistry

Background:

• Microorganisms play a crucial role in nutrient cycling and biosynthesis.
• Hydrocarbon degradation by bacteria is an area of interest for bioremediation and bioproduction.
• L-lysine is an essential amino acid with significant industrial applications.

Purpose of the Study:

• To isolate and identify a soil bacterium capable of L-lysine accumulation.
• To investigate the potential of this bacterium for L-lysine production from hydrocarbon substrates.
• To optimize conditions for maximizing L-lysine yield.

Main Methods:

• Bacterial isolation from Assam, India soil samples.
• Identification of the isolated bacterium using standard microbiological techniques.
• Cultivation in a synthetic medium with hydrocarbon as a carbon source.
• Supplementation experiments with casamino acids to assess yield improvement.
• Quantification and isolation of L-lysine under optimal conditions.

Main Results:

• A strain of Micrococcus varians was isolated and identified.
• The bacterium demonstrated the ability to accumulate L-lysine from hydrocarbon.
• Growth and L-lysine accumulation were observed in a synthetic medium.
• Casamino acid supplementation significantly enhanced L-lysine yield.
• Optimal conditions yielded 2.6 g/L of crystalline L-lysine.

Conclusions:

• Micrococcus varians is a viable candidate for L-lysine production from hydrocarbons.
• Synthetic media supplemented with casamino acids can improve L-lysine yield.
• The isolated strain shows potential for industrial L-lysine biosynthesis.