When Are Primary Metabolites Produced?

Primary metabolites are typically formed during the growth phase as a result of energy metabolism, and are deemed essential for proper growth. Examples of primary metabolites include alcohols such as ethanol, lactic acid, and certain amino acids.

What phase are primary metabolites produced?

Primary metabolites are microbial products made during the exponential phase of growth whose synthesis is an integral part of the normal growth process.

How are secondary metabolites produced?

Secondary metabolites are produced by microorganisms when one or more of the nutrients in the culture medium is depleted. Secondary metabolites usually have an important ecological function and serve diverse survival functions in nature.