Assessment of aflatoxin B 1 adsorption efficacy of natural and processed bentonites: In vitro and in vivo assays

Soufiani, G.R. Nazparvar; Razmara, Morteza; Kermanshahi, Hassan; Velázquez, Ana Luisa Barrientos; Daneshmand, Ali

doi:10.1016/j.clay.2016.01.019

Cited by 18 publications

(6 citation statements)

References 31 publications

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“…In vitro AFB 1 adsorption capacity The extracted AFB 1 content from chyme in the control sample was noted to be 19.98 ng mL À1 , while the results in Table 1 show that the in vitro AFB 1 adsorption capacities of all the mixtures with the dietary fibre powder samples were significantly higher than that of the control sample. The ability of the fibre powder to adsorb AFB 1 is due most probably to the interaction between the AFB 1 molecules and functional groups of the fibre, either via the physical or chemical adsorption, ion exchange or complexation mechanisms (Soufiani et al, 2016). The in vitro AFB 1 adsorption capacity values of the pretreated fibre were in the range of 53.10-74.34% and were significantly lower than that of the fibre from the untreated residues, which was 80.58%.…”

Section: Glucose Dialysis Retardation Indexmentioning

confidence: 93%

Influences of pretreatment and drying methods on composition, micro/molecular structures and some health‐related functional characteristics of dietary fibre powder from orange pulp residues

Sungsinchai

Niamnuy

Jaree

et al. 2017

Int J of Food Sci Tech

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Summary Influences of pretreatment methods (washing, blanching, soaking in ethanol), drying methods (hot air‐drying, infrared‐drying, microwave‐drying) and drying temperature on selected characteristics of dietary fibre powder from orange pulp residues were investigated. Pretreatments improved the hydration properties, oil‐holding capacity and glucose dialysis retardation index, but led to losses of fibres, decreased α‐amylase inhibitory activity and aflatoxin B1 adsorption capacity. Hydration properties, oil‐holding capacity and glucose uptake depended on the structure and porosity of the fibre, while the ability to inhibit α‐amylase and AFB1 adsorption depended more on the content and molecular fingerprinting of the fibre. Drying condition did not significantly affect functional properties of the fibre, except for the ability to uptake glucose, inhibit α‐amylase and adsorb AFB1 (P ≤ 0.05). Hot air‐drying at 60 °C resulted in fibre with the highest ability to decrease the rate of glucose and AFB1 adsorption.

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Section: Glucose Dialysis Retardation Indexmentioning

confidence: 93%

Influences of pretreatment and drying methods on composition, micro/molecular structures and some health‐related functional characteristics of dietary fibre powder from orange pulp residues

Sungsinchai

Niamnuy

Jaree

et al. 2017

Int J of Food Sci Tech

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“…Varying levels of efficiency have been reported for activated carbons and hydrated sodium calcium aluminosilicate [ 29 , 31 , 35 , 43 , 65 ]. Regarding bentonite and its major active component, montmorillonite, most of the reviewed studies showed promising results in different study arrangements [ 15 , 20 , 21 , 32 , 37 , 38 , 40 , 49 , 50 , 66 ]. It is reported that clay products have not consistently prevented decreases in milk yield caused by AFB1 ingestion, and yeast fermentation products have been reported to have potential to improve animal performance parameters [ 42 ].…”

Section: Main Factors Influencing Aflatoxin Carry-overmentioning

confidence: 99%

“…Sulzberger et al (2017) [ 40 ] found that an adsorbent composed of vermiculite, nontronite, and montmorillonite, added in different concentrations, linearly reduced the aflatoxin transfer from the rumen into the milk. Soufiani et al (2016) [ 38 ] compared the effects of natural and processed bentonite (local or commercially available) and found that the aflatoxin contents in milk and transfer rates were decreased only by using locally processed bentonite. They concluded that processing bentonites by means of entering sodium ions into the interlayer space of the clay could considerably increase the adsorption of aflatoxin from feed and decrease aflatoxin transfer into milk.…”

Section: Appendix A1 Activated Carbons and Hscasmentioning

confidence: 99%

Carry-Over of Aflatoxin B1 from Feed to Cow Milk—A Review

Zentai

Jóźwiak

Süth

et al. 2023

Toxins

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The conversion of aflatoxin B1 in feed consumed by cows into aflatoxin M1 in their milk poses a challenge to food safety, with milk being a popular staple food and because of the harmful effects of these compounds. This study aimed at reviewing scientific information about the extent of carry-over of AFB1 from feed to milk. A range of studies reported about correlations of carry-over with different factors, particularly with milk yield and AFB1 intake. The extent of carry-over considerably varies, being 1–2% on average, which may be as high as 6% in the case of increased milk production. Specific factors influencing transfer rates, including milk yield, somatic cell counts, aflatoxin B1 intake, source of contamination, seasonal effects, particle size of feed, and the effects of certain interventions, namely vaccination and the use of adsorbents, are identified as the most important and are discussed in this review. The different mathematical formulas describing carry-over and instances of their application are reviewed as well. These carry-over equations may lead to largely different results, and no single carry-over equation can be suggested as the best one. While the exact quantification of carry-over is difficult as the process depends on many factors, including individual variabilities between animals, the intake of aflatoxin B1 and milk yield seem to be the most important factors influencing the excreted amount of aflatoxin M1 and the rate of carry-over.

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“…AFM 1 reduction has been observed when bentonite was added directly to naturally contaminated milk [188,189]. However, bentonite, when added to feed for dairy cattle, has also been found to be effective in reducing AFM 1 levels in milk indirectly [190,191] via adsorption of AFB 1 in the gastrointestinal tract, leading to reducing its carry-over as AFM 1 into milk [192].…”

Section: Adsorbentsmentioning

confidence: 99%

Aflatoxins: History, Significant Milestones, Recent Data on Their Toxicity and Ways to Mitigation

Pickova

Ostrý

Toman

et al. 2021

Toxins

114

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In the early 1960s the discovery of aflatoxins began when a total of 100,000 turkey poults died by hitherto unknown turkey “X” disease in England. The disease was associated with Brazilian groundnut meal affected by Aspergillus flavus. The toxin was named Aspergillus flavus toxin—aflatoxin. From the point of view of agriculture, aflatoxins show the utmost importance. Until now, a total of 20 aflatoxins have been described, with B1, B2, G1, and G2 aflatoxins being the most significant. Contamination by aflatoxins is a global health problem. Aflatoxins pose acutely toxic, teratogenic, immunosuppressive, carcinogenic, and teratogenic effects. Besides food insecurity and human health, aflatoxins affect humanity at different levels, such as social, economical, and political. Great emphasis is placed on aflatoxin mitigation using biocontrol methods. Thus, this review is focused on aflatoxins in terms of historical development, the principal milestones of aflatoxin research, and recent data on their toxicity and different ways of mitigation.

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Assessment of aflatoxin B 1 adsorption efficacy of natural and processed bentonites: In vitro and in vivo assays

Cited by 18 publications

References 31 publications

Influences of pretreatment and drying methods on composition, micro/molecular structures and some health‐related functional characteristics of dietary fibre powder from orange pulp residues

Influences of pretreatment and drying methods on composition, micro/molecular structures and some health‐related functional characteristics of dietary fibre powder from orange pulp residues

Carry-Over of Aflatoxin B1 from Feed to Cow Milk—A Review

Aflatoxins: History, Significant Milestones, Recent Data on Their Toxicity and Ways to Mitigation

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