Returning Rejected Protein Products to Production: Vacuum Evaporation at Ambient Temperature (ARBOK-REVITA and ARBOK-PROTEIN)

Food prices are rising while more than one billion tonnes of food are thrown away every year. Rejected and expired protein products (dairy, nutrition, egg, poultry, meat and fish) are normally sent to landfill, although producers buy the same protein concentrate again. Thermal drying cannot return such material to production: egg and fish proteins denature at 50-65 degrees C, while spray drying runs at 180-200 degrees C and uses 350-400 kWh per tonne. This preprint describes a vacuum-evaporation route (ARBOK-REVITA for dairy and nutrition products, ARBOK-PROTEIN for egg, poultry, meat and fish streams) in which a reject is dissolved in clean water and dehydrated under deep vacuum at ambient temperature without external heating. Reported parameters: electricity use 1-2 kWh per tonne, protein retention 98-99%, material recovery 90-97%, 100% destruction of the tested pathogens, water recovery up to 99.98%. For a nutrition plant with USD 50 million revenue and 2-5% rejects the return is USD 0.9-2.4 million per year and output from the same raw material grows by 2-5%.