Gülhan ÜnlüThe goal of all living organisms is to survive. To prolong their existence, humans, plants, and animals make energy, and so do microbes. Some microorganisms are considered beneficial to other living organisms while others are not. In either scenario, “their goal is really to grow and reproduce,” says Gülhan Ünlü, an associate professor at the University of Idaho. To do that, they must generate enough energy for survival, but how and at what cost? “In food microbi…

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