You are signed in as:
  • IFPRI
  • Signed in via:
  • IP Address

  • Choose a colour
  • Rhamnolipid biosurfactant production by Pseudomonas aeruginosa strain KVD-HR42 isolated from oil contaminated mangrove sediments.

    Author(s) : Deepika, K. V.Raghuram, M.Bramhachari, P. V.

    Author Affiliation : Department of Biotechnology, Krishna University, Machilipatnam - 521 001- AP, India.

    Author Email : mraghuram2002@gmail.comveerabramha@gmail.com

    Journal article : African Journal of Microbiology Research 2017 Vol.11 No.6 pp.218-231 ref.many

    Abstract : Pseudomonas aeruginosapseudomonas aeruginosaSubject Category: Organism Names
    see more details
    strain KVD-HR42 exhibiting growth and biosurfactant productionproductionSubject Category: Miscellaneous
    see more details
    with 1% molassesmolassesSubject Category: Commodities and Products
    see more details
    as the sole carbon source was isolated from oil contaminated mangrove sediments. Optimization of media conditions involving variations in carbon, nitrogen sources, amino acidsamino acidsSubject Category: Chemicals and Chemical Groups
    see more details
    , pH, temperature, and NaCl% were evaluated with the aim of increasing biosurfactant productivityproductivitySubject Category: Properties
    see more details
    and surface tension reduction (STR). The highest biosurfactant production of 4.83 g/L was obtained when cells were grown in mineral salts media (MSM) supplemented with 1% (w/v) molasses, NaNO3, and leucineleucineSubject Category: Chemicals and Chemical Groups
    see more details
    0.1% (w/v) at 35±2°C at 150 rpm after 48 h. The results obtained from kinetics study indicated that biosurfactant production, E24%, and rhamnose concentration were growth associated. However, maximum biosurfactant production occurred in the exponential growth phase and detected an increase in E24% and rhamnose concentration. The Fourier transform infrared (FTIR) spectra confirmed the rhamnolipid nature of the biosurfactant. Stability studies revealed the thermostable activity of biosurfactant (110°C for 15 min) and could also withstand wide pH and NaCl ranges. Maximum oil biodegradationbiodegradationSubject Category: Miscellaneous
    see more details
    of 68% was achieved with 1% waste lubricant oil (WLO). The biosurfactant emulsified various hydrocarbons with varied efficiencies. However maximum E24% and E48% activity was exhibited with n-hexadecane (69.5 and 40%). The results reveal the potential of strain KVD-HR42 biosurfactant for the bioremediationbioremediationSubject Category: Techniques, Methodologies and Equipment
    see more details
    of petroleum hydrocarbonspetroleum hydrocarbonsSubject Category: Chemicals and Chemical Groups
    see more details
    in mangrove sediments.

    ISSN : 1996-0808

    DOI : 10.5897/ajmr2015.7881

    Record Number : 20173131675

    Publisher : Academic Journals

    Location of publication : Lagos

    Country of publication : Nigeria

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : plantsplantsSubject Category: Organism Names
    see more details
    , PseudomonaspseudomonasSubject Category: Organism Names
    see more details
    , Pseudomonas aeruginosapseudomonas aeruginosaSubject Category: Organism Names
    see more details

    Descriptor(s) : amino acidsamino acidsSubject Category: Chemicals and Chemical Groups
    see more details
    , biodegradationbiodegradationSubject Category: Miscellaneous
    see more details
    , bioremediationbioremediationSubject Category: Techniques, Methodologies and Equipment
    see more details
    , contaminationcontaminationSubject Category: Miscellaneous
    see more details
    , developmental stagesdevelopmental stagesSubject Category: Miscellaneous
    see more details
    , heat stabilityheat stabilitySubject Category: Properties
    see more details
    , heat toleranceheat toleranceSubject Category: Properties
    see more details
    , hydrocarbonshydrocarbonsSubject Category: Chemicals and Chemical Groups
    see more details
    , leucineleucineSubject Category: Chemicals and Chemical Groups
    see more details
    , mangrovesmangrovesSubject Category: Organism Groups
    see more details
    , microbiologymicrobiologySubject Category: Disciplines, Occupations and Industries
    see more details
    , molassesmolassesSubject Category: Commodities and Products
    see more details
    , petroleum hydrocarbonspetroleum hydrocarbonsSubject Category: Chemicals and Chemical Groups
    see more details
    , productionproductionSubject Category: Miscellaneous
    see more details
    , productivityproductivitySubject Category: Properties
    see more details
    , saltsaltSubject Category: Commodities and Products
    see more details
    , sedimentsedimentSubject Category: Miscellaneous
    see more details
    , sodium chloridesodium chlorideSubject Category: Chemicals and Chemical Groups
    see more details
    , treestreesSubject Category: Organism Groups
    see more details
    , wasteswastesSubject Category: Commodities and Products
    see more details
    , woody plantswoody plantsSubject Category: Organism Groups
    see more details

    Identifier(s) : growth phase, NaCl

    Broader term(s) : PseudomonadaceaepseudomonadaceaeSubject Category: Organism Names
    see more details
    , PseudomonadalespseudomonadalesSubject Category: Organism Names
    see more details
    , GammaproteobacteriagammaproteobacteriaSubject Category: Organism Names
    see more details
    , ProteobacteriaproteobacteriaSubject Category: Organism Names
    see more details
    , BacteriabacteriaSubject Category: Organism Names
    see more details
    , prokaryotesprokaryotesSubject Category: Organism Names
    see more details
    , PseudomonaspseudomonasSubject Category: Organism Names
    see more details
    , eukaryoteseukaryotesSubject Category: Organism Names
    see more details