Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Microbial Production of Violacein and Process Optimization for Dyeing Polyamide Fabrics With Acquired Antimicrobial Properties
IndBioCat Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens.
Institute of Molecular Genetics and Genetic Engineering, University of Belgrade.
IndBioCat Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athen.
Materials Industrial Research and Technology Center S.A., Athens.
Visa övriga samt affilieringar
2018 (Engelska)Ingår i: Frontiers in Microbiology, E-ISSN 1664-302X, Vol. 9, artikel-id 1495Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In the present study, crude bacterial extract containing violacein is investigated for the preparation of antimicrobial polyamide fabrics. The optimal culture conditions of Janthinobacterium lividum (JL) for maximum biomass and violacein production were found to be 25°C, pH 7.0, while the addition of ampicillin of 0.2 mg mL-1 in the small scale increased violacein production 1.3-fold. In scale-up trials, the addition of 1% (v/v) glycerol in a fed-batch bioreactor, resulted in fivefold extracted crude violacein increase with final concentration of 1.828 g L-1. Polyamide 6.6 fabrics were dyed following three different processes; through simultaneous fermentation and dyeing (SFD), by incubating the fabric in the sonicated bacterial culture after fermentation and by using cell-free extract containing violacein. Maximum color change (ΔE) and color strength (K/S) obtained for SFD fabrics were 74.81 and 22.01, respectively, while no alteration of fastness and staining of dye at acid and alkaline perspiration or at water was indicated. The dyed fabrics presented significant antifungal activity against Candida albicans, C. parapsilosis, and C. krusei, as well as antibacterial properties against Escherichia coli, Staphylococcus aureus, and the S. aureus MRSA. We have shown that J. lividum cultures can be successfully used for violacein production and for simultaneous dying of fabrics resulting in dyed fabrics with antimicrobial properties without utilization of organic solvents.

Ort, förlag, år, upplaga, sidor
Frontiers Media S.A., 2018. Vol. 9, artikel-id 1495
Nationell ämneskategori
Bioprocessteknik
Forskningsämne
Biokemisk processteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-70271DOI: 10.3389/fmicb.2018.01495ISI: 000438066200002PubMedID: 30042746Scopus ID: 2-s2.0-85049834158OAI: oai:DiVA.org:ltu-70271DiVA, id: diva2:1237302
Anmärkning

Validerad;2018;Nivå 2;2018-08-08 (andbra)

Tillgänglig från: 2018-08-08 Skapad: 2018-08-08 Senast uppdaterad: 2024-01-17Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMedScopus

Person

Topakas, Evangelos

Sök vidare i DiVA

Av författaren/redaktören
Topakas, Evangelos
Av organisationen
Kemiteknik
I samma tidskrift
Frontiers in Microbiology
Bioprocessteknik

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 70 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf