What are some beneficial microorganisms introduced to food to give it a unique flavor?
The most common beneficial microorganisms introduced to food to give it a unique flavor are xanthan and dextran gums, produced by species of Xanthomonas and Leuconostoc bacteria respectively. Soy sauce production uses the mold Aspergillus oryzae and other micro-organisms to ferment a soybean/ wheat mixture. This gives it a strong aroma and a dark, reddish-brown color.