Curry spices could help reduce methane gases from cows & sheep

An interesting new method in battling climate change.

"Methane is a major contributor to global warming, and the slow digestive system of ruminant animals such as cows and sheep makes them a key producer of the gas," Mr Hasan explained. "What my research found was that certain spices contain properties which make this digestive process more efficient so producing less waste – in this case, methane.

"Spices have long been used safely by humans to kill bacteria and treat a variety of ailments," he added. The study looked at five curry spices – cumin, coriander, clove, turmeric and cinnamon. Each was "ground up" – as if chewed by the sheep – and added to an in-vitro solution mimicking that found in the rumen of the animal. The level of methane released by each was measured against a control.

The most effective was found to be coriander, which reduced methane production from 14 millilitres per gram of food to eight – a drop of 40 per cent. Turmeric produced a 30 per cent reduction and cumin 22 per cent.