Extrusion based snacking

can any one say how to retain natural colouring in extrusion without any added synthetic colours and should be operated at 140 degree centigrade hot extruson ?…

1. Food R&D Emeritus reply

   Spinach in powder form if added to a food formulation will retain its green color and strong spinach taste. Extrusion cooking is pressurized heat treatment of a medium creating a…

2. Rajeev Kerala reply

   Hi, which colour shade to bring in? Like...green/orange/ red ?