This research demonstrated the microbial treatment of concentrated phenol wastes using a two-phase partitioning bioreactor (TPPB). TPPBs are characterized by a cell-containing aqueous phase and an immiscible and biocompatible organic phase that partitions toxic substrates to the cells on the basis of their metabolic demand and the thermodynamic equilibrium of the system. Process limitations imp...

Background: Aflatoxin B1 (AFB1) is a mutagenic and carcinogenic compound mainly produced by the Aspergillus parasiticus, A. flavus, A. nomius, A. tamari, and A. pseudotamarii. AFB1 biodegradation is the most important strategy for reducing AFB1 in plant tissues. Bacteria can deactivate and biodegrade AFB1 for effective detoxification of contaminated products. The present study investigated the ...

Thirty-seven carbofuran-degrading bacteria were isolated from agricultural soils, and their genetic and phenotypic characteristics were investigated. The isolates were able to utilize carbofuran as a sole source of carbon and energy. Analysis of the 16S rRNA gene sequence indicated that the isolates were related to members of the genera Rhodococcus, Sphingomonas, and Sphingobium, including new ...

In an attempt to estimate the occurrence of phenol hydroxylase-related gene sequences we performed a dot blot hybridization assay with DNA from phenol utilizing Trichosporon cutaneum R57 strain NBIMCC 2414 and microbial isolates from different wastewaters. The used oligonucletides were homologous to the 5'-end of TORPHD locus (NCBI)-coding phenol hydroxylase in Trichosporon cutaneum ATCC 46490 ...

A novel degradation pathway of chloroaniline in Diaphorobacter sp. PCA039 entails initial hydroxylation. A novel gene cluster (pca), involved in the degradation of p-chloroaniline, was identified from Diaphorobacter sp. PCA039 capable of utilizing p-chloroaniline as sole carbon, nitrogen and energy source for growth. There were 29 ORFs in the pca cluster, in the order of pcaTRKLMNOPR1 D1CIU1R2D...

Phenolic compounds are hazardous pollutants that are toxic relatively at low concentrations. Accumulation of phenol creates toxicity both for flora and fauna. Because of its toxicity, there is a need to decontaminate the phenol-laden soils. Hence, bioremediation is a very useful alternative to conventional clean-up methods. the aim of this work was to study the effect of two variables – tempera...

The aim of this work was to examine the ability of phenol degrading Candida maltosa to produce exopolymers and form biofilm under different nutrient conditions. Glass and synthetic foil surfaces were chosen for the assessment of biofilm growth. The results show that any stimulation of biofilm formation is achieved under those nutrient conditions that enhance exopolymer production. In comparison...