In 2004, in a report published by the Department of Energy ofU.S., 12 bio-based chemicals, with a higher market price than bio-fuels were identified of the greatest market value in the UnitedStates [3]. That report has spurred tremendous effort makingthese bio-based chemicals economically feasible [4]. Currently,the only economically feasible option to produce adipic acid isthrough petrochemical routes. This option is extremely detrimen-tal to the environment with the massive production of carbondioxide/nitrous and nitrogen oxide. Most of adipic acid is pro-duced by oxidation of KA oil (cyclohexanol and cyclohexanone)catalyzed by nitric acid [5] (Fig. 1A). Cyclohexanol and cyclohex-anone are both produced from benzene and this process generatesnitrous/nitrogen oxides, carbon monoxide and other hazardouscompounds [6–12]. The adipic acid production in the US gener-ated approximate 1.9 TgCO2Eq in 2009 [13]. The researchers arestruggling to find a more reliable, renewable and affordable adipicacid synthesis methods, among which, biological synthesis of adipicacid is attracting much attention