Biodiesel produced through traditional methods of alkaline transesterification usually presents quality problems due to the formation of insoluble precipitates during its production process. These precipitates bring operational challenges in biodiesel production and, more importantly, compromise the quality of the final biodiesel product by clogging car filters. Steryl glucosides (SGs), natural compounds present in the oils that are used as raw material in the production of biodiesel, are the main agents causing these serious problems. Keclon has developed a proprietary low-cost, high-efficiency biodiesel enzymatic treatment to remove SGs during its production. This process uses an enzyme called steryl glucosidase (SGase) to degrade SGs. Keclon enzymatic solution is compatible with the most common biodiesel production systems (Lurgi, Desmet Ballestra, and others), and can be introduced prior to the final drying step. The enzymatic process reduces the level of total contaminants (TC), cold filtration properties and visual appearance (Haze).