Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system

Endocrine-disrupting chemicals (EDCs) like phthalates, mostly discharged in industrial effluents, cause detrimental effects to different life forms, and hence their removal from constituent wastewater is necessary. This study investigated the kinetics of biomass growth and biodegradation of benzyl b...

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Autores principales:	Moumita Nandi, Tanushree Paul, Dipak Kumar Kanaujiya, Divya Baskaran, Kannan Pakshirajan, G. Pugazhenthi
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	arthrobacter sp. bioavailability biodegradation kinetic modelling phthalates surfactant-aided system Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/26259686cf9a4f08adcbeceaca3caf08
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spelling	oai:doaj.org-article:26259686cf9a4f08adcbeceaca3caf082021-11-06T07:18:28ZBiodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system1606-97491607-079810.2166/ws.2020.347https://doaj.org/article/26259686cf9a4f08adcbeceaca3caf082021-08-01T00:00:00Zhttp://ws.iwaponline.com/content/21/5/2084https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Endocrine-disrupting chemicals (EDCs) like phthalates, mostly discharged in industrial effluents, cause detrimental effects to different life forms, and hence their removal from constituent wastewater is necessary. This study investigated the kinetics of biomass growth and biodegradation of benzyl butyl phthalate (BBP) and dibutyl phthalate (DBP) by Arthrobacter sp. in a surfactant-aided batch system. The effect of different surfactants on aqueous solubility of BBP and DBP was initially examined, which showed that Tween 80 resulted in maximum bioavailability and biodegradation efficiency of the phthalates by the bacterium and without inhibiting the biomass growth. Compared with BBP, DBP was found to be efficiently degraded and supported the bacterial growth within a short period of time over the entire concentration tested in the range 100–1,000 mg L−1. A maximum biomass concentration of 1.819 g L−1 was obtained at 120 h for a DBP concentration of 600 mg L−1 in the presence of Tween 80, which is 5.66-fold increase in biomass concentration as compared with only DBP as the sole substrate. For evaluating the biokinetic parameters involved in DBP biodegradation, the experimental data on DBP utilization were fitted to various kinetic models as reported in the literature. HIGHLIGHTS Biokinetics of surfactant-aided biodegradation of phthalates is reported.; Tween 80 enhanced phthalate biodegradation by improving its bioavailability.; Arthrobacter sp. showed direct uptake of micellar solubilized phthalates.; Efficient biodegradation is achieved overcoming growth inhibition.;Moumita NandiTanushree PaulDipak Kumar KanaujiyaDivya BaskaranKannan PakshirajanG. PugazhenthiIWA Publishingarticlearthrobacter sp.bioavailabilitybiodegradationkinetic modellingphthalatessurfactant-aided systemWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 5, Pp 2084-2098 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	arthrobacter sp. bioavailability biodegradation kinetic modelling phthalates surfactant-aided system Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	arthrobacter sp. bioavailability biodegradation kinetic modelling phthalates surfactant-aided system Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Moumita Nandi Tanushree Paul Dipak Kumar Kanaujiya Divya Baskaran Kannan Pakshirajan G. Pugazhenthi Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system
description	Endocrine-disrupting chemicals (EDCs) like phthalates, mostly discharged in industrial effluents, cause detrimental effects to different life forms, and hence their removal from constituent wastewater is necessary. This study investigated the kinetics of biomass growth and biodegradation of benzyl butyl phthalate (BBP) and dibutyl phthalate (DBP) by Arthrobacter sp. in a surfactant-aided batch system. The effect of different surfactants on aqueous solubility of BBP and DBP was initially examined, which showed that Tween 80 resulted in maximum bioavailability and biodegradation efficiency of the phthalates by the bacterium and without inhibiting the biomass growth. Compared with BBP, DBP was found to be efficiently degraded and supported the bacterial growth within a short period of time over the entire concentration tested in the range 100–1,000 mg L−1. A maximum biomass concentration of 1.819 g L−1 was obtained at 120 h for a DBP concentration of 600 mg L−1 in the presence of Tween 80, which is 5.66-fold increase in biomass concentration as compared with only DBP as the sole substrate. For evaluating the biokinetic parameters involved in DBP biodegradation, the experimental data on DBP utilization were fitted to various kinetic models as reported in the literature. HIGHLIGHTS Biokinetics of surfactant-aided biodegradation of phthalates is reported.; Tween 80 enhanced phthalate biodegradation by improving its bioavailability.; Arthrobacter sp. showed direct uptake of micellar solubilized phthalates.; Efficient biodegradation is achieved overcoming growth inhibition.;
format	article
author	Moumita Nandi Tanushree Paul Dipak Kumar Kanaujiya Divya Baskaran Kannan Pakshirajan G. Pugazhenthi
author_facet	Moumita Nandi Tanushree Paul Dipak Kumar Kanaujiya Divya Baskaran Kannan Pakshirajan G. Pugazhenthi
author_sort	Moumita Nandi
title	Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system
title_short	Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system
title_full	Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system
title_fullStr	Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system
title_full_unstemmed	Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system
title_sort	biodegradation of benzyl butyl phthalate and dibutyl phthalate by arthrobacter sp. via micellar solubilization in a surfactant-aided system
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/26259686cf9a4f08adcbeceaca3caf08
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Biodegradation of benzyl butyl phthalate and dibutyl phthalate by Arthrobacter sp. via micellar solubilization in a surfactant-aided system

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