Infrared Processing of Soya Bean

Infrared Technology for Safe, High-Quality Soya Processing

Soya beans are one of the most valuable vegetable protein sources used across both animal feed and human food industries. However, in their raw state they contain toxic enzymes and anti-nutritional factors that obstruct digestion and reduce performance, particularly in monogastrics and young animals.

Infrared Micronizing provides a fast, controlled thermal treatment that reliably inactivates these compounds while preserving the nutritional integrity of the bean.

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Why Micronized Soya Bean

Infrared Micronizing delivers measurable improvements in soya beans quality and nutritional performance:

Trypsin inhibitor & urease reduction up to 95%
No loss of lysine or other heat-sensitive amino acids
Clean toasted, nutty flavour replacing raw “beany” taste
Improved shelf life via lipoxygenase inactivation
Higher oil availability and better energy density
Stable moisture profile and improved downstream handling

View detailed benefits

Benefits of Infrared Micronizing of Soya Beans

Inactivation of Anti-Nutritional Factors

Raw soya contains trypsin inhibitor, urease, and other anti-nutritional compounds that impair digestion in monogastrics and young animals. Infrared micronizing is one of the most effective methods for reducing these factors, achieving up to 95% reduction without damaging amino acids.

This makes micronized soya safer, more digestible, and better suited for high-performance diets.

Preservation of Amino Acids

Unlike conventional heat treatments, infrared micronizing does not degrade lysine or other heat-sensitive amino acids.

This maintains the protein quality essential for young animal diets, broiler rations, pig starter feeds, dairy concentrates, and pet foods.

Improved Flavour & Palatability

Micronizing develops a clean toasted, nutty flavour that replaces the raw “beany” taste associated with untreated soya. The controlled heating stabilises natural aromas and reduces bitterness, improving intake in animal diets and enhancing flavour performance in human food applications such as soups, sauces, biscuits, meat products, and nutritional beverages.

This makes micronized soya a versatile ingredient for both feed and food manufacturers seeking premium sensory quality.

Increased Shelf Life & Stability

Infrared treatment inactivates lipoxygenase, the enzyme responsible for rancidity, oxidation, and off-flavours in soya beans. By suppressing this reaction, micronized soya maintains its freshness for longer periods, reducing spoilage risk and improving storage behaviour.

The result is a more stable ingredient with predictable performance in feed mills, extrusion plants, and food processing environments where shelf life and product consistency are critical.

Higher Oil Availability & Energy Density

Rapid heating and expansion of the bean structure ruptures oil cells, improving the release and utilisation of natural oils.

This increases the effective energy density of soya and improves extrusion performance in pet and aqua feeds.

Better Handling & Moisture Stability

Cooling systems downstream of the Micronizer stabilise moisture content and ensure uniform product behaviour during storage, conveying, and batching. The controlled thermal profile reduces clumping, improves flowability, and supports accurate dosing in both feed and food production lines.

This results in cleaner operation, fewer handling issues, and more reliable integration into existing plant layouts.

Process Plant Flow for Soya Beans

Typical equipment configuration for a micronizing line.

Intake & Pre‑Cleaners

Conditioning & Moisture Damping System

Tempering Holding Section

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Discharge Temperature Control Zone

Cooling & Moisture Stabilisation System

Final Discharge & Handling Equipment

Integrated Process Plant Solutions & Equipment

Maze Process Solutions delivers complete, engineered equipment configurations for modern processing plants. We design and build critical systems in house, and we procure selected ancillary units through trusted partners to ensure every plant operates as a cohesive, fully integrated solution.

Micronizer™
Flaking Mills
Coolers
Bulk Weighers
Conveyors & Elevators
Residual Cooker / Spark Arrestor

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