Co-metabolic degradation of β-cypermethrin and 3-phenoxybenzoic acid by co-culture of Bacillus licheniformis B-1 and aspergillus oryzae M-4

41Citations
Citations of this article
28Readers
Mendeley users who have this article in their library.

Abstract

The degradation efficiency of organic contaminants and their associated metabolites by coculture of microbes is mainly limited by toxic intermediates from co-metabolic degradation. In this study, we investigated the degradation of β-cypermethrin (β-CY) and 3-phenoxybenzoic acid (3-PBA) by co-culture of Bacillus licheniformis B-1 and Aspergillus oryzae M-4, as well as the influences of β-CY and 3-PBA metabolites on their degradation and the growth of strains B-1 and M-4. Our results indicated that 100 mg/L β-CY was degraded by 78.85%, and 3-PBA concentration was 0.05 mg/L after 72 h. Compared with using only strain B-1, the half-life (t1/2) of β-CY by using the two strains together was shortened from 84.53 h to 38.54 h, and the yield coefficient of 3-PBA was decreased from 0.846 to 0.001. At 100 mg/L of 3-PBA and gallic acid, β-CY and 3-PBA degradation were only 17.68% and 40.45%, respectively. As the toxic intermediate derived from co-metabolic degradation of β-CY by strain B-1, 3-PBA was efficiently degraded by strain M-4, and gallic acid, as the toxic intermediate from co-metabolic degradation of 3-PBA by strain M-4, was efficiently degraded by strain B-1. These results provided a promising approach for efficient biodegradation of β-CY and 3-PBA.

Cite

CITATION STYLE

APA

Zhao, J., Chi, Y., Xu, Y., Jia, D., & Yao, K. (2016). Co-metabolic degradation of β-cypermethrin and 3-phenoxybenzoic acid by co-culture of Bacillus licheniformis B-1 and aspergillus oryzae M-4. PLoS ONE, 11(11). https://doi.org/10.1371/journal.pone.0166796

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free