Question

What are heterotrophic bacteria? how they are helpful to human

Answer 1

Heterotrophs are a group of microorganisms (yeast, moulds & bacteria) that use organic carbon as food (as opposed to autotrophs like algae that use sunlight) and are found in every type of water. Detecting heterotrophs in water is done by using a method called Heterotrophic Plate Count (HPC). HPC, also known as Standard Plate Count) is used to measure bacteriological quality or drinking water in public and private water systems.

Heterotrophic bacteria also has practical uses in dealing with other types of contaminants. In aquariums they can be used to break down organic sludge that can build up in the water.