Summary: Citric acid (CA) is one of the most valuable organic acids in the market as it can be used in diverse biotechnological applications, such as in the food industry, as flavoring agent and as food preservative, besides cosmetics, pharmaceuticals, and cleaning sectors. This acid can be produced by a biotechnological route and the most common producing microorganisms are filamentous fungi and yeasts (Amato, Becci and Beolchini, 2020). Considering that the Brazilian biodiesel production in 2021 was 6.76 million m3, and that 10 kg of crude glycerol are generated for each 100 kg of biodiesel produced, a large amount of that byproduct is available in the market. Then, the objective of this work was to screen filamentous fungi capable of producing citric acid from biodiesel crude glycerol (BCG) on submerged fermentation.

Publication year: 2022

Types of publication: Paper in annals and proceedings

Unit: Embrapa Agroenergy