Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Toxins 2012, 4(2), 98-109; doi:10.3390/toxins4020098
Communication

Sorption of Ochratoxin A from Aqueous Solutions Using β-Cyclodextrin-Polyurethane Polymer

1,*  and 2
Received: 14 November 2011; in revised form: 14 December 2011 / Accepted: 31 January 2012 / Published: 6 February 2012
(This article belongs to the Special Issue Ochratoxins 2011-2012)
View Full-Text   |   Download PDF [525 KB, uploaded 6 February 2012]
Abstract: The ability of a cyclodextrin-polyurethane polymer to remove ochratoxin A from aqueous solutions was examined by batch rebinding assays. The results from the aqueous binding studies were fit to two parameter models to gain insight into the interaction of ochratoxin A with the nanosponge material. The ochratoxin A sorption data fit well to the heterogeneous Freundlich isotherm model. The polymer was less effective at binding ochratoxin A in high pH buffer (9.5) under conditions where ochratoxin A exists predominantly in the dianionic state. Batch rebinding assays in red wine indicate the polymer is able to remove significant levels of ochratoxin A from spiked solutions between 1–10 μg·L−1. These results suggest cyclodextrin nanosponge materials are suitable to reduce levels of ochratoxin A from spiked aqueous solutions and red wine samples.
Keywords: ochratoxin A; nanosponge; isotherm analysis; red wine; decontamination ochratoxin A; nanosponge; isotherm analysis; red wine; decontamination
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Appell, M.; Jackson, M.A. Sorption of Ochratoxin A from Aqueous Solutions Using β-Cyclodextrin-Polyurethane Polymer. Toxins 2012, 4, 98-109.

AMA Style

Appell M, Jackson MA. Sorption of Ochratoxin A from Aqueous Solutions Using β-Cyclodextrin-Polyurethane Polymer. Toxins. 2012; 4(2):98-109.

Chicago/Turabian Style

Appell, Michael; Jackson, Michael A. 2012. "Sorption of Ochratoxin A from Aqueous Solutions Using β-Cyclodextrin-Polyurethane Polymer." Toxins 4, no. 2: 98-109.



Toxins EISSN 2072-6651 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert