Sentence examples for bacteria were left at from inspiring English sources
The bacteria were left at room temperature for 2 h with gentle stirring for biosurfactant release, as previously described (Gudiña et al. [2010b]).
Reheating the rice won't get rid of these toxins, so the longer cooked rice is left at room temperature, the more likely it is that bacteria, or the toxins they produce, could stop the rice being safe to eat.
Perishable food should not be left at room temperature any longer than necessary to prevent bacteria from multiplying on the food.
Evidence has been left at the scene.
The bacteria found in Mexico were in concentrations 1,000 times as high as those in Houston, perhaps because the sauces often were left out at the tables, becoming warm, the researchers said.
To measure bacterial growth on solid media, bacteria were seeded, left at room temperature for 48 hours and then transferred to 25°C for a further 24 hours.
The plates were left for 48 hours at room temperature to allow the stained biofilm bacteria to elute with ethanol.
They were left to feed on the bacteria, and consequent death was recorded everyday.
