Commercial bentonites as detoxifier of broiler feed contaminated with aflatoxin

Magnoli, Alejandra Paola; Tallone, Luciana; Rosa, Carlos A.; Dalcero, Ana María; Chiacchiera, Stella Maris; Sánchez, Rosa M. Torres

doi:10.1016/j.clay.2007.07.007

Cited by 89 publications

(76 citation statements)

References 32 publications

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“…Previous adsorption studies carried out with NaB from different geological sources demonstrated that the adsorption capacity of AFB 1 seemed to be related to both the isomorphic substitution and the surface charges of the montmorillonite component of the mineral (Magnoli et al 2008). The results of the comparative adsorption study showed that the particular NaB used in the present assay had the best performance as AFB 1 binder and therefore was selected to conduct further in vitro studies.…”

Section: Resultsmentioning

confidence: 87%

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Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B₁adsorption ability by a montmorillonite

Magnoli

Alonso

Cavaglieri

et al. 2013

Food Additives & Contaminants: Part A

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The main objective of this study was to evaluate the interference of environment components on the in vitro evaluation of aflatoxin B₁ adsorption capacity of sodium bentonite under simulated gastrointestinal conditions of monogastric and ruminant animals. Sodium bentonite showed a high aflatoxin B₁ affinity with all of the assays. Langmuir or sigmoid isotherms were found in different assays. Both the affinities and the surface excesses at monolayer saturation were affected by the buffer components. The specific influence of ions in each buffer solution was investigated. A significant decrease in the surface excess at monolayer saturation was observed under ionic strength control. A change in the isotherm shape from sigmoidal to Langmuir was observed with the increase in the sodium chloride concentration. This was attributed to the decrease in the importance of lateral interaction between adsorbed toxin molecules compared with surface-molecules interactions under a high salt coverage. The presence of rumen fluid components in the adsorption environment decreased the aflatoxin B₁ maximum adsorption capacity of sodium bentonite. Despite the high affinity of this adsorbent to capture aflatoxin B₁, different substances present in the environment could affect the adsorption capacity, at least at low toxin concentrations that mimic chronic exposure. The environment of the gastrointestinal tract, in either monogastric or ruminant animals, affect in vivo aflatoxin B₁ adsorption by sodium bentonite and should be taken into account when an in vitro performance evaluation is done.

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Section: Resultsmentioning

confidence: 87%

“…A previously characterised NaB from a mine in the province of Mendoza-Argentina, mainly composed of sodium montmorillonites, was used for the assays (Magnoli et al 2008). The adsorbent was activated for 24 h at 110°C in a vacuum oven (Vacuum over Yamato ADP-31).…”

Section: Materials and Methods Reagentsmentioning

confidence: 99%

Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B₁adsorption ability by a montmorillonite

Magnoli

Alonso

Cavaglieri

et al. 2013

Food Additives & Contaminants: Part A

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“…Multiple studies have confirmed the decontaminating properties of clay minerals. They can bind: -aflatoxins (Phillips et al, 1987(Phillips et al, , 1988Lindemann et al, 1993;Schell et al, 1993a,b;Phillips et al, 2002;Abdel-Wahhab et al, 2002;Huebner and Phillips, 2003;Rizzi et al, 2003;Shi et al, 2005Shi et al, , 2007Maciel et al, 2007;Magnoli et al, 2008;Nguyen et al, 2008), -plant metabolites (Dominy et al, 2004), -heavy metals (Hassen et al, 2003;Katsumata et al, 2003;Lin et al, 2004;Xu et al, 2004;Yu et al, 2005Yu et al, , 2008Abbes et al, 2007), -toxins (Knezevich andTadic, 1994).…”

Section: Adsorption Capacity and Effects Of Clay Mineralsmentioning

confidence: 99%

Alternatives to antibiotic growth promoters in prevention of diarrhoea in weaned piglets: a review

Vondruskova¹,

Slamova²,

Trčková³

et al. 2010

Vet. Med.

165

155

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ABSTRACT:The weaning time is a crucial period in the management of piglets. The risk of development of post-weaning diarrhoea (PWD) in piglets is high. PWD is the cause of serious economic losses in pig herds. Since 2006, the use of antibiotic growth promoters for prevention of diarrhoeal diseases in piglets has been banned. This measure also led to the investigation of alternative suitable feed supplements that would be reasonably efficient in protecting and sustaining animal health and performance. Various natural materials such as probiotics, prebiotics, organic acids, zinc and plant extracts have been tested as effective alternatives to antibiotics. Recently, owing to their high adsorption capacity, research efforts have been conducted on the application of natural clays and clay-based feed supplements. The purpose of this review is to summarize the effect of different alternative components as growth promoters on the health and performance of weaned and growing piglets.Keywords: infection; swine; antibiotics; intestinal microflora; performance; probiotics; prebiotics, organic acids; zinc; phytobiotics; aluminosilicate List of abbreviations CFU = colony-forming unit; ETEC = enterotoxigenic Escherichia coli; MMT = montmorillonite; PWD = post weaning diarrhoea; SCFA = short chain fatty acids; VFA = volatile fatty acids Review ArticleVeterinarni Medicina, 55, 2010 (5): 199-224 200 ruses (Moller et al., 1998;Song et al., 2006), transmissive gastroenteritis virus (Hampson et al., 1987; Alexa et al., 1995 Alexa et al., , 2001 Chae et al., 2000;Madec et al., 2000;Melin et al., 2004;Song et al., 2006;Thomsson et al., 2008) and others have been most frequently diagnosed.Early-weaned piglets are exposed to several stress factors, with nutrition, etiology and indoor environment of housing being particularly implicated (Madec et al., 2000;Laine et al., 2008). Noninfectious stress factors which are involved in the development of gastroenteric disorders are: -age of piglets when they are weaned from their dam (Svensmark et al., 1989;Skirrow et al., 1997), -sudden change of feed from sow milk that provides piglets with immunoglobulins (Bailey et al., 1992), -irregular feed intake (Bark et al., 1986;Spencer and Howell, 1989;Svensmark et al., 1989;Madec et al., 1998;Laine et al., 2008), -feed structure (Amezcua et al., 2002), -animal hygiene and housing conditions (Le Dividich, 1981;Le Dividich and Herpin, 1994;Madec et al., 1998), -inadequate feeder space per piglet in the pen (Amezcua et al., 2002). Numerous changes in the early-weaned piglet body can initiate PWD, such as morphological (Hampson, 1986) and functional alterations of the small intestine (Kidder and Manners, 1980; Hampson and Kidder, 1986), changes in intestinal colonization with predominance of E. coli (Melin et al., 1997;Katouli et al., 1999) and weakening of the immune system (Blecha et al., 1983;Wattrang et al., 1998). Ban of antibiotic growth promotersRegarding the fact that weaning greatly affects general health condition of piglets, it is nece...

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“…The fixed mycotoxin being unable to enter the blood and subsequently excreted in faeces after 98% adsorption of AF by Mycofix (Biomin®, 2000). Similarly, incorporation of SB in poultry diet is another proved adsorbent, to have high AF binding capacities both in vitro (Magnoli et al, 2008a) and in vivo (Rosa et al, 2001;Magnoli et al, 2008b). Bentonites are basically clays with strong colloidal properties that absorb water rapidly, which results in swelling and a manifold increase in volume, giving rise to a thixotropic, gelatinous substance (Bailey et al, 1998).…”

Section: Growth Performancementioning

confidence: 99%

Comparative Evaluation of Different Techniques for Aflatoxin Detoxification in Poultry Feed and Its Effect on Broiler Performance

Mahmood¹,

Pasha²,

Khattak³

2011

Aflatoxins - Detection, Measurement and Control

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Commercial bentonites as detoxifier of broiler feed contaminated with aflatoxin

Cited by 89 publications

References 32 publications

Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B₁adsorption ability by a montmorillonite

Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B₁adsorption ability by a montmorillonite

Alternatives to antibiotic growth promoters in prevention of diarrhoea in weaned piglets: a review

Comparative Evaluation of Different Techniques for Aflatoxin Detoxification in Poultry Feed and Its Effect on Broiler Performance

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Commercial bentonites as detoxifier of broiler feed contaminated with aflatoxin

Cited by 89 publications

References 32 publications

Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B1adsorption ability by a montmorillonite

Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B1adsorption ability by a montmorillonite

Alternatives to antibiotic growth promoters in prevention of diarrhoea in weaned piglets: a review

Comparative Evaluation of Different Techniques for Aflatoxin Detoxification in Poultry Feed and Its Effect on Broiler Performance

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Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B₁adsorption ability by a montmorillonite

Effect of monogastric and ruminant gastrointestinal conditions onin vitroaflatoxin B₁adsorption ability by a montmorillonite