2165-2174Organic acid constitute a significant portion of the fermentation market in the world, and microbial production is an important economic alternative to chemical synthesis for many of them. Thus, in order to address the growing market demands of organic acids with the passage of time, it needs to develop new strategies or discoveries for new or novel microbial strains for high level production of commercially important organic acid such as; gluconate, malate, and citrate. In present review, through cumulative analysis of the current microbial strains and their biosynthetic mechanisms for production of these acids, we present guidelines for future developments in this fast-moving field