A PhD student at Macquarie University in Sydney, Australia, has come up with a way to turn waste coffee into biodegradable coffee cups. It hinges on a process which converts mannose, the prevalent ...

Lactic acid is a natural preservative often found in foods like yogurt, baked goods, and pickled vegetables. Along with making your food last longer, it can boost your health by strengthening your ...

Bacteria, including some bacteria in a person’s gut, make lactic acid during fermentation. Manufacturers add lactic acid to food to extend its shelf life, although in some foods, it occurs naturally.