ABSTRACT

Terephthalic acid, a major pollutant in synthetic textile effluents, is hazardous to human health and the environment. Microorganisms isolated from synthetic textile effluent and dumping soil from GIDC, Surat were identified to have TA biodegradation potential based on their ability to use TA as the sole carbon source in MSM media. Isolate DS03 showed the highest TA degrading capacity and was identified as Aspergillus sp. DS03 by ITS screening and homology analysis. The effect of pH, temperature, RPM, inoculum volume, and initial TA concentration on degradation potential was investigated in the present study. Orthogonal array (L9) and RSM (central composite design) were used to identify significant parameters and their optimum values. Temperature and pH were identified as significant parameters and optimum values of pH= 8.2 and Temperature = 27.6°C were predicted to give an estimated 98.2 % TA biodegradation. Experimental analysis using predicted values showed more than 95 % biodegradation within 72 hrs for TA concentrations up 5 %. This study implies that Aspergillus sp. DS03 has application in TA bioremediation. Keywords: Terephthalic acid, Biodegradation, Aspergillus sp., Synthetic textiles, RSM
Publication date: 01/12/2024

https://ijbpas.com/pdf/2024/December/MS_IJBPAS_2024_9927.pdf

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https://doi.org/10.31032/IJBPAS/2024/13.12.9927