Where does a leaf duckweed come from? Scientists give an answer. On the 29th, the reporter learned from the Chengdu Institute of Biology, Chinese Academy of Sciences that the “method of fermented production of fuel ethanol from duckweed†has been patented by the State Intellectual Property Office. This method will be used to extract starch from duckweed in the future to form ethanol. Fuel can power motor vehicles. Fuel ethanol is the fastest growing and largest biofuel in the biomass energy industry. It has mature production technologies and a wide range of raw materials. Adding proper amount of fuel ethanol to the fuel can reduce the content of carbon monoxide and hydrocarbons in the tail gas by 30.8% and 13.4%, respectively. Duckweed has the advantages of high starch content, fast growth rate, easy cultivation, low material cost, no occupation of cultivated land, no competition with others, and is a potential raw material for fuel ethanol production. However, due to the speciality of duckweed composition and structure, if the duckweed is directly used for fermentation, there will be problems such as low alcohol concentration after fermentation, low fermentation efficiency, and poor raw material utilization. Researchers at the Chengdu Institute of Biology, Chinese Academy of Sciences, aimed at the disadvantages of duckweed fermentation, invented a method for the production of fuel ethanol from duckweed fermentation. Through simple pretreatment of duckweed, rapid fermentation produces ethanol, increasing ethanol concentration and fermentation efficiency, and reducing production costs. At present, Chengdu Institute of Biology of the Chinese Academy of Sciences has established duckweed field and field cultivation bases in Sichuan and Yunnan. The experimental team has achieved duckweed starch content up to 52.9% under field conditions. The output of duckweed starch per acre of water reaches more than 800 kg, and the biomass of duckweed has reached 3 tons per mu. According to Zhao Hai, a researcher at the Chengdu Institute of Biology, Chinese Academy of Sciences, 800 kg of duckweed can be used to produce 520 liters of gasoline, based on 1.3 liters of ethanol per two kilograms of starch. Perhaps in the future, sitting on a "duckweed fuel" car is no longer a dream. (Reporter Hu Min) Water-Based Fire Extinguisher,Pure Plant Fire Extinguisher,Wheeled Fire Extinguisher,Security Fire Extinguisher Ningxia Wanhui Import & Export CO.,LTD , https://www.whfireextinguisher.com