Complex sentence: All Quorn foods contain mycoprotein as an ingredient, which is derived from the Fusarium venenatum fungus and is grown by fermentation using a process similar to the production of beer or yoghurt.
Split into simpler sentences: All Quorn foods contain mycoprotein as an ingredient. Mycoprotein is derived from the Fusarium venenatum fungus and is grown by fermentation using a process similar to the production of beer or yoghurt.