Publication:
Enhanced phenol degradation by immobilized Acinetobacter sp. strain AQ5NOL 1

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dc.Chemicals/CASgellan, 71010-52-1; phenol, 108-95-2, 3229-70-7; Phenol, 108-95-2; Polysaccharides, Bacterial; gellan gum, 71010-52-1
dc.FundingDetailsUniversiti Putra Malaysia: 91851
dc.FundingDetailsAcknowledgments This work was supported by Research Grant Scheme (RUGS) 2009, Universiti Putra Malaysia (91851).
dc.citedby53
dc.contributor.affiliationsFaculty of Medicine and Health Sciences
dc.contributor.affiliationsUniversiti Putra Malaysia (UPM)
dc.contributor.affiliationsUniversiti Sains Islam Malaysia (USIM)
dc.contributor.authorAhmad S.A.en_US
dc.contributor.authorShamaan N.A.en_US
dc.contributor.authorArif N.M.en_US
dc.contributor.authorKoon G.B.en_US
dc.contributor.authorShukor M.Y.A.en_US
dc.contributor.authorSyed M.A.en_US
dc.date.accessioned2024-05-29T02:00:38Z
dc.date.available2024-05-29T02:00:38Z
dc.date.issued2012
dc.description.abstractA locally isolated Acinetobacter sp. Strain AQ5NOL 1 was encapsulated in gellan gum and its ability to degrade phenol was compared with the free cells. Optimal phenol degradation was achieved at gellan gum concentration of 0. 75% (w/v), bead size of 3 mm diameter (estimated surface area of 28. 26 mm2) and bead number of 300 per 100 ml medium. At phenol concentration of 100 mg l-1, both free and immobilized bacteria exhibited similar rates of phenol degradation but at higher phenol concentrations, the immobilized bacteria exhibited a higher rate of degradation of phenol. The immobilized cells completely degrade phenol within 108, 216 and 240 h at 1,100, 1,500 and 1,900 mg l-1 phenol, respectively, whereas free cells took 240 h to completely degrade phenol at 1,100 mg l-1. However, the free cells were unable to completely degrade phenol at higher concentrations. Overall, the rates of phenol degradation by both immobilized and free bacteria decreased gradually as the phenol concentration was increased. The immobilized cells showed no loss in phenol degrading activity after being used repeatedly for 45 cycles of 18 h cycle. However, phenol degrading activity of the immobilized bacteria experienced 10 and 38% losses after the 46 and 47th cycles, respectively. The study has shown an increased efficiency of phenol degradation when the cells are encapsulated in gellan gum. � 2011 Springer Science+Business Media B.V.en_US
dc.description.natureFinalen_US
dc.identifier.CODENWJMBE
dc.identifier.doi10.1007/s11274-011-0826-z
dc.identifier.epage352
dc.identifier.issn9593993
dc.identifier.issue1
dc.identifier.pmid22806810
dc.identifier.scopus2-s2.0-84655163930
dc.identifier.spage347
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84655163930&doi=10.1007%2fs11274-011-0826-z&partnerID=40&md5=417baedcbc14e0e580bd3aedb07dc5d7
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/10131
dc.identifier.volume28
dc.languageEnglish
dc.language.isoen_USen_US
dc.relation.ispartofWorld Journal of Microbiology and Biotechnology
dc.sourceScopus
dc.subjectAcinetobacter sp.en_US
dc.subjectGellan gumen_US
dc.subjectImmobilized cellen_US
dc.subjectPhenol degradationen_US
dc.titleEnhanced phenol degradation by immobilized Acinetobacter sp. strain AQ5NOL 1en_US
dc.title.alternativeWorld J. Microbiol. Biotechnol.en_US
dc.typeArticleen_US
dspace.entity.typePublication

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