He said 100 kg of chicken waste, procured from slaughterhouses for which he gets paid up to Rs 7 a kg, can produce 1 liter of biodiesel, which offers over 38 km and can be sold at 40 percent of the diesel price now.

After seven-and-a-half years, the Indian Patent Office finally granted us the patent on July 7, 2021, for inventing ‘biodiesel produced from rendered chicken oil’, John Abraham, a veterinary-doctor-turned-inventor, an associate professor at the veterinary college here under the Kerala Veterinary & Animal Sciences University, told PTI from Wayanad.The higher mileage and lower pollution are because chicken waste contains 62 percent fat, offering the key energy content of Cetane at 72, while in normal diesel it is only 64. It also increases engine efficiency by 11 percent due to the presence of more oxygen, and reduces smoke levels by over 47 percent, Abraham said.