Which innovative ingredient gives Impossible Foods' plant-based burger its meat-like 'bleeding' quality that revolutionized the alternative protein market?

Plant-based meat alternatives have transformed the food industry landscape over the past decade. One particular innovation stands out for its remarkable impact on fast food chains and retail markets. This trivia question explores the groundbreaking technology behind one of the most successful plant-based product innovations in recent history and its journey from laboratory to mainstream adoption.

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Heme (leghemoglobin), a plant-based protein produced through genetically engineered yeast
Methylcellulose, a modified cellulose compound that mimics animal fat texture
Beetroot extract mixed with advanced synthetic flavor compounds
Mycoprotein from fungal fermentation enhanced with artificial colorants