To locate the specific stratigraphic layer where the highest quality SMECTITE can be found.


Several comparative laboratory assays between other bentonites, confirms that ERIGEL is "always" better


Erigel bentonite is taken from Patagonia in the Sedimentary basin of Neuquen


Natural Sodium Bentonite

Erigel MPSA is a natural Sodium Bentonite, which mineral content as dioctahedral montmorillonite is higher than 70%. It has more than 90% of power adsorption aflatoxin B1 (AFB1).

This natural Sodium Bentonite acts as feed additive, as well as reducing aflatoxin AFB1 and Zearalerona (ZEA).

Bentonite Erigel MPSA
Synonym of guarantee.

why is erigel different?

By its location, mode of action, adsorption capacity, properties, purity...
By its location and obtaining process

By its location and obtaining process.

In the sedimentary basin of Neuquén

ERIGEL Sodium Bentonite is taken from Patagonia in the sedimentary basin of Neuquen approximately 40 meters deep, formed about 97 million years ago in the Cretaceous.

  • Extraction depth
    40 m
  • Age of sediments
    97 millones
  • Humidity
  • Percentage natural Sodium Bentonite

6 steps for the production of bentonite Erigel MPSA

The purity of the product is in function of the different production stagesFrom the geological knowledge of the place where is taken, through the precision of the exploration (number of perforations realized in a given surface) and by the classification made during the extraction.

Prospection icon

1. Prospection

Exploration of the land to obtain the mineral. analysis by x-ray diffraction

Drilling icon

2. Drilling

Sedimentary basin of neuquén 40 m deep

Extraction icon

3. Extraction

After extraction of erigel, the carbonate levels are determined

Drying icon

4. Drying

Erigel MPSA contains between 10 - 12% of moisture.

Milling icon

5. Milling

Erigel MPSA particle size:
- 40% ‹ 20 µm

Packaging icon

6. Packaging

The product is packaged in bags or big bags, ready for distribution

Analysis by x – ray diffraction
1197576 ERIGEL-B 3.6 3.4 0.8 92.2 100

XRPD Bulk Mineralogy (weight %) by RIR Method. Smectite (Di)= Diactahedral Smectitie

Analysis by x – ray diffraction

X-Ray diffraction gives a diffractogram of the crystalline minerals. ERIGEL diffractogram indicates that its content is more than 70% natural Sodium Bentonite.

Product quality is the result of knowing exactly where erigel MPSA is extracted

Analysis by x – ray diffraction

By its mode of action

Erigel MPSA, is the best ally for Animal Nutrition. Why?

Erigel MPSA acts as sodium Natural montmorillonite with its triple – layer “sandwich” structure 2:1 which allows the adsorption of molecules between the layers, with adsorption of mycotoxins by its Cation Exchange Capacity (CEC) through the surface contact provided by the size of particle and expansion capacity between layers.

Mycotoxins are produced by fungi secondary toxic metabolites. They are resistant to low and high temperatures, which withstand the processing conditions.

Mycotoxins have to be captured in the intestine of the animal to prevent its action. Erigel MPSA has a power greater uptake of 90% in aflatoxin B1.

Due to its absorption capacity

2:1 three – layer structure

Cation Exchange Capacity (CEC) and Absorption Capacity

As Erigel MPSA is a natural sodium Bentonite with three – layer structure 2:1 united mainly by Na ions, give an inter layer expansion that is used to improve the adsorption of mycotoxins. All of this coupled with the high cation exchange capacity (CEC) present a perfect relationship for the absorption of mycotoxins

A small particle size improves its effectiveness. Sodium ions between 2:1 layers give a swellabilitty up to 16 times the normal size. This extra space makes possible the adsorption of mycotoxins and water

Absorption capacity test
Capacity of Adsorption by Erigel MPSA

AFB1 Capacity of Adsorption by Erigel MPSA

ERIGEL has an higher than 90% adsorption capacity of Aflatoxin B1 in a pH 3 and 6.

Field experiments with natural sodium montmorillonite have also been performed to evaluate the yield performance of animals exposed to mycotoxins.

Laser particle analysis

The particle size of these products is critical for optimal efficiency. The finer particle size and the greater contact surface area increasing the adsorption potential.

89% of ERIGEL has a particle size smaller than 30 µm, as you can see in the graph

Field experiments have demonstrated the efficiency of Erigel MPSA as a great toxin adsorber since the low particle size of bentonite increases the available surface adsorption

Distribution in %

Comparison of different silicate properties

Kaolin Talcs BENTONITE Sepiolite Perlite Zeolites Diatoms
Ca++ Na++
Cic, meq/100g 30 15 150 250 70 25 200-1000 25
Surface, m2/g 20 10 100 200 300 300 150 250
Expansion hability - - + +++ - - - -

Natural sodium bentonite is the best balanced silicate uptake mycotoxins, since CEC has high values of surface adsorption and swellability.

The unic properties of erigel make it the best product for mycotoxins absorption.

Erigel MPSA is a bentonite which has a purity that gives it extraordinary absorption power.

Erigel MPSA activity

Results in Field Studies

Testing on chickens

Effects of natural sodium bentonite on aflatoxins and fumonisins

Tests on chickens showed the effects of natural sodium bentonite against aflatoxin and fumonisin (LAMIC, 2005).

The experiment evaluated the effects of three different treatments with aflatoxin (AFB1) and fumonisin (FS1) contamination with or without the addition of sodium bentonite (BS) the feed for 28 days. Twenty birds were used in each treatment.

Testing on chickens

Results of the tests

Treatments Body weight gain (BW) from 23 to 50 d (g Differences with the control group (%) Liver weight (g / 100g of BW) Kidney weight (g / 100g of PC)
  BS(%) AFB,(mg/kg) FS,(mg/kg)
1 0 0 0 1,865 0 2,89 0,41
2 0,3 0 0 1,895 +1,6 2,90 0,43
3 0 2,5 0 1,463 -21,6 3,43 0,68
4 0,3 2,5 0 1,805 -3,2 2,89 0,40
5 0 0 200 1,812 -2,8 2,86 0,42
6 0,3 0 200 1,855 -0,5 2,85 0,41
7 0 2,5 200 1,338 -28,3 3,84 0,72
8 0,3 2,5 200 1,505 -19,3 2,90 0,71

Different treatments with aflatoxin contamination

   Weight of the liver
   Weight gain
   Kidney weight

Studies have demonstrated that sodium bentonite was able to reduce the incidence and severity of problems caused by mycotoxins.

The use of montmorillonite in the organs affected by mycotoxins reduce the loss of weight compared to organs affected and not treated.

Sodium bentonite adsorption effects are higher on aflatoxins than on fumonisins.

don't be fooled!!

The analysis by atomic absorption of the element’s composition and the relative proportions to these elements, allows the classification of the products to better evaluate their quality.

A correct ratio between SiO2, Al2O2 and MgO identifies the mineral.

A high Mg content means that the product could be a talc or sepiolite.

A high content of aluminum, associated with a low Mg content, can lead to the synthesis of bentonite, while Na and Ca level identifies whether it's calcium or sodium.

Silicates against reduction of mycotoxins

SILICATES CIC (meq/100 g) Surface (m2/g) Porosity CIC/m2 AFLB1 ZEA OTA Other
Bentonite Ca 150 100 3 0,015 7 3 3 2
Bentonite Na 250 200 4 0,009 10 5 4 3
Kaolin 30 150 2 0,002 4 2 1 1
Diatomite 25 250 6 0,001 9 4 5 2
Perlite 15 300 7 0,001 6 3 2 4
Sepoilite 75 300 5 0,003 2 1 1 1
Ca Silicate 30 500 6 0,001 - - - -
Precipitated silicas 10 500 7 0,000 7 4 3 4
Talcum powder 15 200 2 0,001 3 1 1 1
Vermiculite 10 400 7 0,000 6 4 2 4
Zeolite 500 150 3 0,033 6 4 4 4

Years of hard work and research enable to get the best natural sodium bentonite

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