Degradation of isoprothiolane by a defined microbial consortium using response surface methodology

Area of Science:

• Environmental microbiology
• Bioremediation
• Chemical degradation

Background:

• Isoprothiolane is a widely used fungicide.
• Effective degradation methods are crucial for environmental safety.
• Microbial degradation offers a sustainable solution.

Purpose of the Study:

• To develop a microbial consortium for isoprothiolane degradation.
• To optimize biodegradation parameters using Response Surface Methodology (RSM).
• To validate the model for predicting degradation efficiency.

Main Methods:

• Development of a defined microbial consortium.
• Optimization of inoculum concentration, temperature, and pH using RSM.
• Incubation for 72 hours.
• Study of isoprothiolane degradation at various concentrations.

Main Results:

• Optimized conditions: 50 microg protein ml(-1) inoculum, 30°C, pH 4-8.
• Maximum predicted degradation of 100% for 5-30 ppm isoprothiolane.
• High degradation efficiency (95.5%) observed for 50 ppm at pH 4.6.

Conclusions:

• The developed microbial consortium is effective for isoprothiolane degradation.
• RSM successfully optimized biodegradation parameters.
• The model accurately predicts degradation efficiency, validating its effectiveness.