Abstract
BIODEGRADATION OF PHENOLIC MIXTURES AT HIGH INITIAL CONCENTRATIONS BY TRAMETES VERSICOLOR 1 IN A “FED-BATCH” PROCESS

Galena Angelova*, Ivanka Stoilova, Kolyo Dinkov and Albert Krastanov

ABSTRACT

Biodegradation of mixed substrates phenol and catechol and phenol and 2,4-dichlorophenol at high inhibitory initial concentrations (2 g/dm3) by Trametes versicolor 1 in a “fed-batch” process is studied. It is established that Trametes versicolor 1 (biomass 50 g/dm3) biodegrades total 6.14 g mixture of phenol and catechol for 14 d at 2 feedings and 2.57 g mixture of phenol and 2,4-dichlorophenol for 8 d at 1 feeding. It is found that Trametes versicolor 1 synthesizes phenol-hydroxylase, catechol 1,2-oxygenase – enzymes, required for biodegradation of substrates in the two studied phenolic mixtures. Laccase is produced in media containing substrates phenol and catechol, in the media comprised mixture of phenol and 2,4-dichlorophenol this enzyme is not being synthesized. The lysis of Trametes versicolor 1 during the biodegradation of phenol and catechol (79,2 %) and phenol and 2,4-dichlorphenol (76,4 % ) is weaker than the lysis during the biodegradation of phenol (96 %) at the same initial concentration (2 g/dm3).

Keywords: Trametes versicolor, biodegradation, phenol, 2,4-dichlorophenol, catechol, phenol hydroxylase, catechol 1,2-oxygenase, laccase.


[Full Text Article]

Login





Forgot Password  |  Register

Indexing

Best Paper Awards

European Journal of Biomedical and Pharmaceutical Sciences (EJBPS) will give best paper award in every issue in the form of money along with certificate to promote research activity of scholar.

Best Article of current issue :

Tangudu Nagabhusana Rao

Download Article : Click here

News & Updation

  • APRIL ISSUE PUBLISHED

    APRIL 2018 Issue has been successfully launched on 1 April 2018

  • EJBPS New Impact Factor

    Its our Pleasure to Inform you that EJBPS Impact Factor has been increased from 4.382 to 4.918 due to high quality Publication at International Level.

  • Index Copernicus Value

    EJBPS Received Index Copernicus Value 77.3, due to High Quality Publication in EJBPS at International Level

  • Journal web site support Internet Explorer, Google Chrome, Mozilla Firefox, Opera, Saffari for easy download of article without any trouble.

    .

  • Article Invited for Publication

    Dear Researcher, Article Invited for Publication  in EJBPS coming Issue.

     

UG/PG/Ph.D Research Publication

Research Scholar of UG/PG/Ph.D can Submit their Research Article/Review Article/Case Study/Short Communication for Publication in EJBPS

Downloads

Copyright From

Covering Letter

                        Author Instruction 
 

PLAGERLUM REPORT