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Gas Dosing Unit

Protein aeration

Protein aeration technology makes it possible to produce the next generation of meat and fish alternatives, altering the bite and color to match different types of meat and fish.

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Key benefits

The next generation of meat and fish substitutes
Protein Aeration Technology improves the biting properties and mouthfeel of high moisture meat and fish substitues to mimik different meats and fish even more by increasing the porosity of the extrudate, which also enhances flavor and oil absorption. Simultaneoulsy it can lighten the colors of the meat and fish analogues to match the color of the endproduct more authentically.
Works with new and existing Bühler Extruders
The Gas Dosing Unit used for Protein Aeration Technology is retrofittable and works with all existing and new Bühler Extruders. With the HMI you activate the gas injection and control the amount of gas injected into the extruder.
Product increase up to 10%
Injecting gas results in higher volume and lower density of the extrudate and as a result, reducing raw material cost. The increased porosity also leads to less need of flavoring and marination to achieve great tasting products.

The next generation of meat- and fish-like analogues

​​The end of monotonous fiber structures​

​​Protein aeration technology and breaker plates​

Combining protein aeration technology and breaker plates paves the way to tastier meat and fish alternatives. Protein aeration technology improves the bite, mouthfeel and color through gas injection and enables better marination because of the microporous structure. Breaker plates then create complex flow behavior, resulting in a meatier or fishier mouthfeel.

​​Breaker plates for small scale production​

PolyCool 50

PolyCool 50 is excellent for research purposes and product developments with a production rate of 50 kg/h. This level of throughput is suitable for testing different recipes and process performance characteristics without requiring enormous amounts of raw materials. Our cooling die nozzle is desiged to mimic the textures of meat and fish.

Micropores for better flavor absorption

Taste

Micropores are created through gas expansion at the end of the cooling die. These help season and marinate the extrudate, making it easier to create a tastier meat alternative while using fewer flavoring ingredients.

Adjust the tone of the extrudate to match the meat

Authentic colors

Color shades can be changed by injecting different volumes of gas. This improves the look of the plant-based meat substitute, bringing it closer to its meat or fish counterpart.

Altering flow patterns to create a meatier fiber​

Breaker plates

Our patented breaker plates can be fitted to the PolyCool 500 and PolyCool 50 and change the flow pattern of protein melt into the cooling die, resulting in meat-like fibers. The complex flow behavior creates intricate structures in the end product for a meatier mouthfeel and bite or fish-like flakiness.

Bite and mouthfeel

Meatier fibers

Gas injection makes the texture of TVP extrudates more similar to different types of meat and fish. It creates micropores that loosen the dense fibers, resulting in softer textures. The density can be adjusted by the amount of gas injected for premium products that are similar to the animal protein counterpart.

​​Breaker plates for medium scale production​

PolyCool 500

Our high-performance PolyCool 500 meets the standards of medium-scale industrial production with a production rate of about 500 kg/h for different ingredients and novel textures. The PolyCool is easy to maintain, operate and maximizes food safety with a streamwise, hygienic swing door design and easy access.

Other features

Test new products, shapes, recipes, textures, technologies in one of our Extrusion Application Centers in Uzwil (CH), Changzhou and Wuxi (CN) as well as Minneapolis (USA) or at the facility located at the Givaudan Woodlands site (SG). Bühler’s processing expertise combined with Givaudan’s knowledge of flavor and taste is a unique and exciting offer for developing new products.

We can develop both sustainable and cost-effective solutions for large scale protein processors that cover the whole value chain. With our comprehensive process knowledge, reliable machines and large-scale capacity, Bühler can be considered the market leader from the bean to the burger.

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