Sturtevant Inc.

Air Classification = Low Ash, High Protein Products

I  want to send out a big thank you to Tina Caparella, editor of Render magazine Joe Muscolinofor publishing my article in the April issue called “Air Classification = Low Ash, High Protein Products.”

The article was based on a white paper I wrote for the 2017 Australian Renderers Association 14th International Symposium where I spoke at at the Air Classification of Rendered Animal Meals workshop.

The article explains the steps of the rendering process and how air classification of rendered animal meal has been proven to reduce ash content and increase protein in every animal species tested (poultry, lamb, pork, fish, bovine, duck) and the list keeps growing.

Typical results include the reduction of ash content as low as 5 to 7% and an increase of protein levels by 3 to 5%, which is suitable for the ultra-premium pet food market. Examples of the air classifier’s performance with various animal protein meals are given in the article.

The Whirlwind is a high capacity air classifier with low energy consumption and easy-to-use controls. It does not require auxiliary equipment. The Whirlwind is much more versatile than cyclones or screens and it does not clog like fine screens.

Read the Render article in its entirety. If you have any questions please contact me.