The above mentioned are just a part of a food product from microorganisms of various types only. It is the role of microbes help make food processing has the smell and taste a wide variety of human needs.
The above are just some of the types of food products from microbial only say that microbes play a role to help keep food smells. Taste and diverse needs of human beings as well.
The above is only part of the food products from various types of microorganisms. Said microorganisms play a role to help food processing to smell. And the variety of flavors to meet the requirements of the human very much.