Wang and Guo revolved around a life cycle assessment (LCA) with a primary focus on energy consumption, GHG emissions, along with sensitivity and uncertainty analysis. Utilizing methods like direct-fermentation and gasification plus fermentation, as modelled in Aspen Plus V11, ethanol-to-jet fuel (ETJ) was produced from feedstocks such as corn, cassava, and corn cob. A salient feature of this study was the revelation that there are only a few life cycle assessments of ETJs available in the context of China. This research, thus, plays a pivotal role in assisting policymakers in deciding the direction of China's sustainable aviation fuel (SAF) evolution. A noteworthy result from the LCA showed the process had the least energy and GHG emission, registering at 370.05 KJ/MJ for jet fuel and 31.66 gCO2eq/MJ for jet fuel.