Rhamnolipid from a Lysinibacillus sphaericus strain IITR51 and its potential application for dissolution of hydrophobic pesticides.
Antibacterial
Biosurfactant
Lysinibacillus sphaericus
Pesticide
Rhamnolipid
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
21
08
2018
revised:
28
09
2018
accepted:
30
09
2018
pubmed:
9
10
2018
medline:
17
8
2019
entrez:
9
10
2018
Statut:
ppublish
Résumé
Rhamnolipid produced from a Lysinibacillus sphaericus IITR51 was characterized and its ability for dissolution of hydrophobic pesticides were evaluated. L. sphaericus produced 1.6 g/L of an anionic biosurfactant that reduced surface tension from 72 N/m to 52 N/m with 48% emulsification index. The biosurfactant was found stable over a wide range of pH (4.0-10.0), temperature (4-100 °C), salt concentration (2-14%) and was identified as rhamnolipid. At the concentration of 90 mg/L rhamnolipid showed enhanced dissolution of α-, β-endosulfan, and γ-hexachlorocyclohexane up to 7.2, 2.9, and 1.8 folds, respectively. The bacterium utilized benzoic acid, chlorobenzene, 3- and 4-chlorobenzoic acid as sole source of carbon and was found resistant to arsenic, lead and cadmium. Furthermore, the isolated biosurfactant showed antimicrobial activities against different pathogenic bacteria. The results obtained indicate the usefulness of rhamnolipid for enhanced dissolution and thereby increasing the bioavailability.
Identifiants
pubmed: 30296609
pii: S0960-8524(18)31411-1
doi: 10.1016/j.biortech.2018.09.144
pii:
doi:
Substances chimiques
Glycolipids
0
Pesticides
0
rhamnolipid
0
Types de publication
Journal Article
Langues
eng
Pagination
19-25Informations de copyright
Copyright © 2018 Elsevier Ltd. All rights reserved.