the aqueous-like phase, which is of lower hydrophobic character, and their desired components are secreted and float to the top forming a hydrophobic phase. This phase is easily accessible to collection apparatuses and requires little energy to collect. Lack of Heat Generation Due to the isolated nature of the microbial metabolism in cell culture, wherein the biofuel components are produced there is no need to increase temperatures to make reactions run at appreciable rates. Rather substrate availability and growth conditions govern the reaction rate of the desired component. This is of critical importance when this principle is juxtaposed with the energy-intensive processes of most biofuel companies. References External links Company homepage in March 2013 Biofuel in the United States 2013 mergers and acquisitions