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Production of lytic enzyme from Pseudomonas aeruginosa M-1001
1Department of Food Engineering, Da-Yeh Institute of Technology, Chang-Hwa, Taiwan, Republic of China.
Abstract:
Pseudomonas aeruginosa M-1001 produced both hen-egg-white lysozyme inhibitors and lytic enzyme in the culture broth. The lytic enzyme produced was not inhibited by the lysozyme inhibitors. Maximal lytic activity was obtained when the strain was grown aerobically in a medium consisting of 0.25% glucose, 0.75% soluble strach, 0.25% beef extract, 0.25% Polypepton, 0.25% sodium L-glutamate and 0.0001% NaCl (pH 6), at 37 degrees C after 36 hrs. The lytic enzyme was stable at pH from 6 to 8 and temperatures below 40 degrees C. Many bacteria and Saccharomyces cerevisiae were found to be inhibited by the crude lytic enzyme produced from the M-1001 strain except for the strain itself and a few other microorganisms.
Insights
Pseudomonas aeruginosa M-1001 produces a potent lytic enzyme, unaffected by its own lysozyme inhibitors. This enzyme effectively inhibits various bacteria and yeast, showing stability under specific conditions.
Area of Science:
- Microbiology
- Enzymology
Background:
- Pseudomonas aeruginosa is known for producing various bioactive compounds.
- Lysozyme inhibitors and lytic enzymes play roles in microbial interactions.
Purpose of the Study:
- To characterize the lytic enzyme produced by Pseudomonas aeruginosa M-1001.
- To investigate the enzyme's properties and inhibitory spectrum.
Main Methods:
- Culturing Pseudomonas aeruginosa M-1001 under optimized aerobic conditions.
- Assessing lytic activity and stability at different pH and temperatures.
- Testing the enzyme's inhibitory effects on various microorganisms.
Main Results:
- A lytic enzyme, not inhibited by endogenous lysozyme inhibitors, was produced.
- Optimal production occurred in a specific nutrient medium at 37°C for 36 hours.
- The enzyme demonstrated stability between pH 6-8 and below 40°C, inhibiting many bacteria and Saccharomyces cerevisiae.
Conclusions:
- Pseudomonas aeruginosa M-1001 produces a robust lytic enzyme with potential antimicrobial applications.
- The enzyme's stability and broad-spectrum activity make it a candidate for further research.