Commercial bentonites as detoxifier of broiler feed contaminated with aflatoxin

被引：82

作者：

Magnoli, Alejandra P. ^{[2
]}

Tallone, Luciana ^{[2
]}

Rosa, Carlos A. R. ^{[4
]}

Dalcero, Ana M. ^{[3
]}

Chlacchiera, Stella M. ^{[2
]}

Sanchez, Rosa M. Torres ^{[1
]}

机构：

[1] CETMIC, RA-1897 La Plata, Argentina

[2] Univ Nacl Rio Cuarto, Dto Quim, Cordoba, Argentina

[3] Univ Nacl Rio Cuarto, Dto Microbiol & Immunol, Cordoba, Argentina

[4] Univ Fed Rural Rio Janeiro, Dept Microbiol Micotoxicol, Inst Vet, BR-23851970 Rio De Janeiro, Brazil

来源：

APPLIED CLAY SCIENCE | 2008年 / 40卷 / 1-4期

关键词：

sodium bentonites; detoxifiers; pellets; aflatoxicoses;

D O I：

10.1016/j.clay.2007.07.007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Some bentonites have been probed to be efficient as sequestering agents for aflatoxins; they decreased the bioavailability of the toxin in the gastrointestinal tracts of birds when they are incorporated in the diets. The binding capacity of these adsorbents varied with the rheological source and even among batches of a given source. Three bentonites from different sources in Argentina, which have very different aflatoxins (AFs) adsorption capacity, were studied. The characterization comprises chemical analysis, scanning electron microscopy (SEM), X-ray power diffraction (XRD), Hg intrusion porosimetry, swelling capacity, etc. The main factors affecting the adsorption of AFs seem to be related to the isomorphic substitution of the montmorillonite and to electrostatic interactions generated by the surface charge of the samples. Neither the mean pore size nor the percentage of quartz has any effect upon the AFs adsorption. (C) 2007 Elsevier B.V All rights reserved.

引用

页码：63 / 71

页数：9

共 40 条

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