Yeast is an unassuming part of our kitchen, but without it, there would be no fluffy bread, airy pizza, or fragrant yeast braid. Normally, we buy it without a second thought at the supermarket.

Lactic acid bacteria are critical to the dairy, food processing, and nutrition industries. Used as probiotics, flavor compounds, and starter cultures for fermented foods such as yogurt, the bacteria ...

Add Yahoo as a preferred source to see more of our stories on Google. If you make your own yeast, you become less dependent on supermarkets. Photo: Getty Images / brebca Yeast is an unassuming part of ...