Pig By-Products

tonnes of animal by-products generated after slaughter represent some of the most strategic resources in the modern bioeconomy. Through rendering systems, valuable outputs such as lard, meat and bone meal, protein hydrolysates, and blood products can be recovered, helping reduce environmental burdens while creating substantial value within the circular economy.

Two main processing methods stand out, depending on the raw material and the desired product quality:

Dry Rendering: An energy-efficient method particularly suited to high-fat waste materials, processed without adding water by utilizing their naturally occurring moisture and fat content.

Wet Rendering: An advanced processing technique for high-moisture raw materials that uses steam injection and mechanical forces to release fat from cellular structures and achieve a high degree of clarification.

Both processes use controlled thermal treatment, often under pressure, to reduce pathogen loads and help ensure the hygienic safety of the final product.

The market value and shelf life of products obtained from rendering plants are directly linked to the quality of phase separation. Polat Makina’s high-speed decanter centrifuges separate the mixture obtained after cooking into solid (protein), liquid (fat), and water phases using high G-forces, maximizing the dewatering of the protein fraction. In the subsequent stage, advanced separator centrifuges remove fine particles and sediment from the crude fat, achieving a level of purity that exceeds global industry standards.

With its closed-system design, Polat Makina helps control unpleasant odours and minimize environmental risks, positioning itself as an efficiency partner that reduces operating costs in both dry and wet rendering processes.

Polat Makina’s engineering expertise transforms pig by-products from waste into valuable economic assets sought after by industries worldwide.