dc.contributor.author	Vila Donat, P.
dc.contributor.author	Marín Sillué, Sònia
dc.contributor.author	Sanchís Almenar, Vicente
dc.contributor.author	Ramos Girona, Antonio J.
dc.date.accessioned	2020-01-20T12:04:18Z
dc.date.available	2020-07-21T22:19:14Z
dc.date.issued	2019-07-21
dc.identifier.issn	0377-8401
dc.identifier.uri	http://hdl.handle.net/10459.1/67827
dc.description.abstract	In the present work different clays have been characterized according to their mycotoxins adsorbent ability. Firstly, 27 bentonite clays from different geographical origins were evaluated, at 0.02% w/v, using an in vitro screening method versus five mycotoxins (aflatoxin B1, AFB1; deoxynivalenol, DON; ochratoxin A, OTA; fumonisin B1, FB1; and, zearalenone, ZEN) by Enzyme- Linked Immunosorbent Assay (ELISA). Subsequently, 7 bentonite clays (6 of which were trioctahedral bentonites) selected from the preliminary test, and 7 commercial adsorbent products were subjected to an in vitro equilibrium adsorption experiment (at 0.02% w/v) against six concentrations of AFB1 (0.02-4 mg/L), and OTA (0.05-1 mg/L) by using simulated gastrointestinal (GI) juices, and successively analysed by HPLC-FD. Equilibrium isotherm functions were fitted to the data by nonlinear regression analysis. In vitro adsorption equilibrium experiments showed that AFB1 adsorption was very high with all the adsorbents tested. In particular, the seven pre-selected bentonites adsorbed most of the AFB1 present at the lower level tested, while only three of these reached more than 50% of OTA adsorption. Adsorption increased inversely to the toxin concentration and both Langmuir and Freundlich isotherm models fitted well to the data. Generally, the pre-selected bentonites (B1-B7) showed better mycotoxin adsorption than commercial products (C1-C7) at all levels of mycotoxins tested. The 10-fold dose increase of the best tri-octahedral bentonite (B4) rendered a more effective adsorption of OTA, reaching almost 75% of adsorption (at pH 5)
dc.description.sponsorship	The authors are grateful to the following institutions: Spanish government (projects AGL2014-52648-REDT and RTC-2015-3508-2–ERDF. A way to make Europe, funded by the Ministry of Economy and Competitiveness of the Government of Spain and by the European Regional Development Fund of the European Union with the objective of “Promoting technological development, innovation and quality research”) and to XaRTA (The Catalonian Reference Network in Food Technology) for funding. P. Vila-Donat thanks MINECO for her postdoctoral contract.
dc.format.mimetype	application/pdf
dc.language.iso	eng
dc.publisher	Elsevier
dc.relation	MINECO/PN2013-2016/AGL2014-52648-REDT
dc.relation	MINECO/PN2013-2016/RTC-2015-3508-2–ERDF
dc.relation.isformatof	Versió postprint del document publicat a: https://doi.org/10.1016/j.anifeedsci.2019.114228
dc.relation.ispartof	Animal Feed Science and Technology, 2019, vol. 255, article number 114228
dc.rights	cc-by-nc-nd (c) Elsevier, 2019
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/es
dc.subject	micotoxina
dc.subject	Adsorción
dc.subject	Bentonita
dc.title	New mycotoxin adsorbents based on tri-octahedral bentonites for animal feed
dc.type	info:eu-repo/semantics/article
dc.date.updated	2020-01-20T12:04:18Z
dc.identifier.idgrec	029462
dc.type.version	info:eu-repo/semantics/acceptedVersion
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.identifier.doi	https://doi.org/10.1016/j.anifeedsci.2019.114228

New mycotoxin adsorbents based on tri-octahedral bentonites for animal feed

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