Amlan’s Mineral Technology

Amlan’s proprietary mineral technology is the foundation of our innovative value-adding products for poultry and livestock. As the animal health business of Oil-Dri® Corporation of America, Amlan products are backed by Oil-Dri’s more than 80 years of mineral science expertise. Additionally, vertical integration means Oil-Dri and Amlan own every step of the production process to consistently deliver safe, high-quality animal intestinal health products around the world.


What Is Amlan’s Mineral Technology?

Composed of calcium montmorillonite with high-capacity opal-CT lepispheres

Type of phyllosilicate constructed of nano-scale layers

Mined from a single source in the USA

Mineral technology.

The Mineral’s Composition and Structure

Low bulk density and high surface area

Extensive porosity with networks of capillary channels

Interconnected pores mean more than 99% of the total surface area is internal

Mineral composition structure.

Proprietary Thermal Processing

Raw montmorillonite has a high moisture content due to water between the mineral layers

Optimal thermal processing eliminates free moisture, making the mineral more hydrophobic

The processing method is optimized for each product to create unique functionalities

Thermal processing avoids the use of harmful chemicals others use to alter the chemical composition of minerals

Thermal processing.

Molecular Interactions

Thermal processing allows interactions between hydrophilic and hydrophobic molecules and the inter-mineral layer

Targeted molecules migrate towards internal sites on the mineral’s surface

Smaller molecules travel further into the finer pores, while larger molecules travel to peripheral sites

Target molecules adsorption.

Safe and Reliable Mineral-Based Products

Vertical integration allows us to control every step of the production process to deliver safe, high-quality products

We perform extensive core drilling analyses to selectively mine the highest quality raw materials

Independent laboratories regularly test our calcium montmorillonite to ensure that it is safe to be fed to animals

Digging raw materials.
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Thermally processed to avoid harmful chemicals

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Optimized surface chemistry tailored for each product

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Safe, consistent, quality-controlled and vertically integrated production

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Mined and processed from a single mine in the USA

Our Mineral Technology IS the Amlan Difference

Get the Real Facts About Amlan’s Mineral

There are several industry misconceptions about the efficacy of clay minerals in animal health. Get the real facts by clicking the tabs below.

Misconception #1: All Clay Minerals Are the Same

The chemical and structural properties of calcium montmorillonite can vary significantly between mines and even within a single mine. That’s why we select the calcium montmorillonite used in Calibrin®-Z and other Amlan products from very specific locations within our mine, ensuring a consistent efficacy and the highest-quality final product.

Mineral under a microscope.
Source: Amlan International.

Why are we so specific about our mineral? Its unique composition of calcium montmorillonite and naturally occurring opal-CT lepispheres create extensive porosity and allow for a proprietary thermal processing method that is specifically tailored for each Amlan product. Thermal processing of Calibrin-Z ensures the mineral’s structural integrity and optimizes its broad utility, ultimately helping producers maximize animal performance and production economics.

Misconception #2: Mineral-Based Clay Products Only Bind Aflatoxins

The clay minerals typically used in mycotoxin-control products contain water molecules — it’s what makes these products hydrophilic and attractive for binding hydrophilic (polar) mycotoxins like aflatoxins. Our processing technique eliminates most of the water molecules from mineral-based Calibrin®-Z, making it more hydrophobic. This allows Calibrin-Z to bind hydrophilic (polar) and hydrophobic (nonpolar) mycotoxins such as zearalenone, fumonisin, ochratoxin and T-2 toxin. In addition to mycotoxins, Calibrin-Z binds pathogenic bacteria and their toxins.

Typical Montmorillonite
Thermally Processed Montmorillonite
Typical montmorillonite. Thermally processed montmorillonite.
Source: Amlan International.

Misconception #3 Mineral-Based Clay Products Bind Important Nutrients in the Diet

Concern has occasionally been voiced that mineral-based products are “blind,” and that they bind both harmful substances within the animal gastrointestinal tract but also the beneficial nutrients and mineral compounds that nutritionists formulate to ensure optimum animal performance. In the case of Calibrin-Z, while it is possible that some minor quantity of nutrients could temporarily be absorbed into the mineral’s pores, this is through weak thermodynamic and kinetic interactions that are readily reversible. Therefore, nutrients can travel into and out of Calibrin-Z particles based on concentration gradients in the gastrointestinal tract (termed competitive adsorption-desorption dynamics)

Essentially all mycotoxin-control products sold today contain various clay minerals as their base, typically in the range of 45–100% of the formula by weight. If these minerals truly bound nutrients in an irreversible manner, then commercial producers would see this impact in reduced animal performance. This has not been the case, and these products have been used for decades with good effect. 

In a 42-day swine study with pigs fed a common basal diet, Calibrin-Z was included at 5 kg/MT, a level that was 10 times the recommended dose. Even at this very high inclusion rate, Calibrin-Z had no adverse effects on nutrient availability, supporting equivalent weight gain and feed conversion.

Amlan A logo.

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