Microbial Enzymes for the Mineralization of Xenobiotic Compounds

Chatterjee, Ankita; Chakraborty, Pritam; Abraham, Jayanthi

doi:10.1002/9781119717317.ch16

Cited by 2 publications

(1 citation statement)

References 65 publications

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“…It usually has an acidic isoelectric point and a molecular mass of 60-90 kDa [24][25][26]. Laccase is encoded by a family of genes and produced in the form of multiple isozymes [27,28]. It has been proven that genes encoding laccase isozymes were differentially regulated [29,30].…”

Section: Introductionmentioning

confidence: 99%

A Laboratory-Scale Study: Biodegradation of Bisphenol A (BPA) by Different Actinobacterial Consortium

Adesanya¹,

Adesanya²

2022

Actinobacteria - Diversity, Applications and Medical Aspects

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The unique diversity of microbes makes them ideal for biotechnological purposes. In this present study, 16 actinobacterial isolates were screened on media supplemented with Bisphenol A (BPA). Three out of 16 isolates exhibited high biocapacity to degrade BPA as a carbon source. Four different mixed actinobacterial consortia were developed using the above strains and the effect of each consortium on biomass growth; laccase production and BPA degradation were examined. At 100-mg/L BPA concentration, the three-member consortium grew well with maximum laccase activity as well as maximal degradation rate of Bisphenol A than the other two-member consortium. The consortium of Actinomyces naeslundii, Actinomyces bovis, and Actinomyces israelii degraded 93.1% with maximum laccase activity of 15.9 U/mL, followed by A. naeslundii and A. israelii with 87.3% and 9.5 U/mL. This was followed by A. naeslundi and A. bovis with 80.4% and 8.7 U/mL, while A. bovis and A. israelii degraded 76.0% with laccase activity of 7.0. The gas chromatography–mass spectrometry (GC–MS) analysis of biodegraded BPA showed the presence of oxalic acid and new products like 1,2,4-trimethylbenzene and 2,9-dimethyldecane.

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