Sorption of hydrophobic organic compounds (HOC) in rapeseed oil bodies

• Published in: Chemosphere (Oxford) Vol. 70; no. 8; pp. 1452 - 1458
• Main Authors: Boucher, J., Cengelli, F., Trumbic, D., Marison, I.W.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01-02-2008; Elsevier
• Subjects: Absorption; adsorbents; adsorption; Applied sciences; aqueous solutions; atrazine; Biological and medical sciences; Biological and physicochemical phenomena; Biosorbent; Biotechnology; Brassica napus; Brassica rapa - chemistry; Brassica rapa - ultrastructure; carbaryl; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Environment and pollution; Exact sciences and technology; extraction; Fundamental and applied biological sciences. Psychology; herbicides; Hydrophobic organic pollutants; Inclusion Bodies - chemistry; Inclusion Bodies - ultrastructure; Industrial applications and implications. Economical aspects; insecticide residues; lipid bodies; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Miscellaneous; Natural water pollution; Oil-bodies; parathion; Plant Oils - chemistry; Pollution; Pollution, environment geology; Rapeseed; remediation; seeds; Water Pollutants, Chemical - chemistry; Water Purification - methods; Water treatment; Water treatment and pollution; Water treatment; Biosorbent; Absorption; Oil-bodies; Hydrophobic organic pollutants; Rapeseed; Monolayer; Vegetable fat; Phospholipid; Hydrophobic compound; Biomembrane; Mass transfer; Decontamination; Cruciferae; Dicotyledones; Angiospermae; Brassica napus; Spermatophyta; Water pollution; Bioremediation; Organic compounds
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/j.chemosphere.2007.08.065

Oil-bodies are minute plant organelles (0.5–2.0
μm diameter) consisting of an oil core surrounded by a phospholipid monolayer/proteinaceous membrane. Oil-bodies have been isolated from rapeseed seeds and demonstrated to constitute a novel type of micro-capsule suitable for the extraction of hydrophobic organic compounds from aqueous environments. Three hydrophobic pesticides: atrazine (2-chlor-4-ethyl-amino-6-isopropylamino-1,3,5-triazine), carbaryl (1-naphthyl methylcarbamate) and parathion (
O,
O-diethyl
O-(4-nitrophenyl) phosphorothioate), as well as naphthalene and 2-phenylethanol were successfully extracted from aqueous solutions, with absorption in the inner oily core of OB as sorption mechanism. The OB membrane does not represent a barrier for the mass transfer of the compound towards the inner oily core of OB. Moreover, due to very high surface area to volume ratio, oil-bodies exhibit very good mass transfer properties compared with larger synthetic microcapsules or two-phase liquid–liquid extraction (LLE) techniques, which diminishes the need for strong agitation and avoids the formation of difficult to separate stable emulsions.